Home / 930,276.90-1,395,415.35-256,356.90

Finding the Fourth Proportional to 930,276.90, 1,395,415.35 and 256,356.90

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Solution

The fourth proportional to 930,276.90, 1,395,415.35 and 256,356.90 is: 384,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,276.90 : 1,395,415.35 = 256,356.90 : x
  2. Step 2: Convert to fraction form
    930,276.90/1,395,415.35 = 256,356.90/x
  3. Step 3: Cross multiply
    930,276.90x = 1,395,415.35 × 256,356.90
  4. Step 4: Simplify right side
    930,276.90x = 357,724,353,338.42
  5. Step 5: Solve for x
    x = 357,724,353,338.42/930,276.90
  6. Step 6: Final answer
    x = 384,535.35

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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.