Home / 672,077.15-1,008,115.73-432,928.70

Finding the Fourth Proportional to 672,077.15, 1,008,115.73 and 432,928.70

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Solution

The fourth proportional to 672,077.15, 1,008,115.73 and 432,928.70 is: 649,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,077.15 : 1,008,115.73 = 432,928.70 : x
  2. Step 2: Convert to fraction form
    672,077.15/1,008,115.73 = 432,928.70/x
  3. Step 3: Cross multiply
    672,077.15x = 1,008,115.73 × 432,928.70
  4. Step 4: Simplify right side
    672,077.15x = 436,442,232,438.45
  5. Step 5: Solve for x
    x = 436,442,232,438.45/672,077.15
  6. Step 6: Final answer
    x = 649,393.05

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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.