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Finding the Fourth Proportional to 704,737.80, 972,545.30 and 382,450.68

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Solution

The fourth proportional to 704,737.80, 972,545.30 and 382,450.68 is: 527,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,737.80 : 972,545.30 = 382,450.68 : x
  2. Step 2: Convert to fraction form
    704,737.80/972,545.30 = 382,450.68/x
  3. Step 3: Cross multiply
    704,737.80x = 972,545.30 × 382,450.68
  4. Step 4: Simplify right side
    704,737.80x = 371,950,609,403.55
  5. Step 5: Solve for x
    x = 371,950,609,403.55/704,737.80
  6. Step 6: Final answer
    x = 527,785.81

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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.