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Finding the Fourth Proportional to 482,734.28, 726,992.18 and 439,639.04

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Solution

The fourth proportional to 482,734.28, 726,992.18 and 439,639.04 is: 662,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,734.28 : 726,992.18 = 439,639.04 : x
  2. Step 2: Convert to fraction form
    482,734.28/726,992.18 = 439,639.04/x
  3. Step 3: Cross multiply
    482,734.28x = 726,992.18 × 439,639.04
  4. Step 4: Simplify right side
    482,734.28x = 319,614,144,102.71
  5. Step 5: Solve for x
    x = 319,614,144,102.71/482,734.28
  6. Step 6: Final answer
    x = 662,091.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.