Home / 781,157.31-1,078,017.42-436,981.83

Finding the Fourth Proportional to 781,157.31, 1,078,017.42 and 436,981.83

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Solution

The fourth proportional to 781,157.31, 1,078,017.42 and 436,981.83 is: 603,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,157.31 : 1,078,017.42 = 436,981.83 : x
  2. Step 2: Convert to fraction form
    781,157.31/1,078,017.42 = 436,981.83/x
  3. Step 3: Cross multiply
    781,157.31x = 1,078,017.42 × 436,981.83
  4. Step 4: Simplify right side
    781,157.31x = 471,074,024,963.48
  5. Step 5: Solve for x
    x = 471,074,024,963.48/781,157.31
  6. Step 6: Final answer
    x = 603,046.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.