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Finding the Fourth Proportional to 477,068.80, 714,930.72 and 376,787.20

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Solution

The fourth proportional to 477,068.80, 714,930.72 and 376,787.20 is: 564,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,068.80 : 714,930.72 = 376,787.20 : x
  2. Step 2: Convert to fraction form
    477,068.80/714,930.72 = 376,787.20/x
  3. Step 3: Cross multiply
    477,068.80x = 714,930.72 × 376,787.20
  4. Step 4: Simplify right side
    477,068.80x = 269,376,744,182.78
  5. Step 5: Solve for x
    x = 269,376,744,182.78/477,068.80
  6. Step 6: Final answer
    x = 564,649.68

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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.