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Finding the Fourth Proportional to 724,367.54, 999,672.56 and 402,083.02

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Solution

The fourth proportional to 724,367.54, 999,672.56 and 402,083.02 is: 554,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,367.54 : 999,672.56 = 402,083.02 : x
  2. Step 2: Convert to fraction form
    724,367.54/999,672.56 = 402,083.02/x
  3. Step 3: Cross multiply
    724,367.54x = 999,672.56 × 402,083.02
  4. Step 4: Simplify right side
    724,367.54x = 401,951,361,935.93
  5. Step 5: Solve for x
    x = 401,951,361,935.93/724,367.54
  6. Step 6: Final answer
    x = 554,899.74

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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.