Home / 1,008,077.85-1,512,116.78-260,123.85

Finding the Fourth Proportional to 1,008,077.85, 1,512,116.78 and 260,123.85

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Solution

The fourth proportional to 1,008,077.85, 1,512,116.78 and 260,123.85 is: 390,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,077.85 : 1,512,116.78 = 260,123.85 : x
  2. Step 2: Convert to fraction form
    1,008,077.85/1,512,116.78 = 260,123.85/x
  3. Step 3: Cross multiply
    1,008,077.85x = 1,512,116.78 × 260,123.85
  4. Step 4: Simplify right side
    1,008,077.85x = 393,337,638,463.20
  5. Step 5: Solve for x
    x = 393,337,638,463.20/1,008,077.85
  6. Step 6: Final answer
    x = 390,185.78

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.