Home / 938,356.20-1,407,318.36-559,383.90

Finding the Fourth Proportional to 938,356.20, 1,407,318.36 and 559,383.90

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Solution

The fourth proportional to 938,356.20, 1,407,318.36 and 559,383.90 is: 838,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,356.20 : 1,407,318.36 = 559,383.90 : x
  2. Step 2: Convert to fraction form
    938,356.20/1,407,318.36 = 559,383.90/x
  3. Step 3: Cross multiply
    938,356.20x = 1,407,318.36 × 559,383.90
  4. Step 4: Simplify right side
    938,356.20x = 787,231,232,758.40
  5. Step 5: Solve for x
    x = 787,231,232,758.40/938,356.20
  6. Step 6: Final answer
    x = 838,947.12

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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.