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Finding the Fourth Proportional to 402,468.48, 603,518.31 and 240,436.89

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Solution

The fourth proportional to 402,468.48, 603,518.31 and 240,436.89 is: 360,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,468.48 : 603,518.31 = 240,436.89 : x
  2. Step 2: Convert to fraction form
    402,468.48/603,518.31 = 240,436.89/x
  3. Step 3: Cross multiply
    402,468.48x = 603,518.31 × 240,436.89
  4. Step 4: Simplify right side
    402,468.48x = 145,108,065,514.46
  5. Step 5: Solve for x
    x = 145,108,065,514.46/402,468.48
  6. Step 6: Final answer
    x = 360,545.17

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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.