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Finding the Fourth Proportional to 539,787.66, 744,162.03 and 386,950.38

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Solution

The fourth proportional to 539,787.66, 744,162.03 and 386,950.38 is: 533,457.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,787.66 : 744,162.03 = 386,950.38 : x
  2. Step 2: Convert to fraction form
    539,787.66/744,162.03 = 386,950.38/x
  3. Step 3: Cross multiply
    539,787.66x = 744,162.03 × 386,950.38
  4. Step 4: Simplify right side
    539,787.66x = 287,953,780,290.07
  5. Step 5: Solve for x
    x = 287,953,780,290.07/539,787.66
  6. Step 6: Final answer
    x = 533,457.51

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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.