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Finding the Fourth Proportional to 668,957.39, 1,003,713.10 and 369,411.29

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Solution

The fourth proportional to 668,957.39, 1,003,713.10 and 369,411.29 is: 554,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,957.39 : 1,003,713.10 = 369,411.29 : x
  2. Step 2: Convert to fraction form
    668,957.39/1,003,713.10 = 369,411.29/x
  3. Step 3: Cross multiply
    668,957.39x = 1,003,713.10 × 369,411.29
  4. Step 4: Simplify right side
    668,957.39x = 370,782,951,060.90
  5. Step 5: Solve for x
    x = 370,782,951,060.90/668,957.39
  6. Step 6: Final answer
    x = 554,269.91

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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.