Home / 434,728.20-652,092.30-418,981.80

Finding the Fourth Proportional to 434,728.20, 652,092.30 and 418,981.80

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Solution

The fourth proportional to 434,728.20, 652,092.30 and 418,981.80 is: 628,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,728.20 : 652,092.30 = 418,981.80 : x
  2. Step 2: Convert to fraction form
    434,728.20/652,092.30 = 418,981.80/x
  3. Step 3: Cross multiply
    434,728.20x = 652,092.30 × 418,981.80
  4. Step 4: Simplify right side
    434,728.20x = 273,214,805,620.14
  5. Step 5: Solve for x
    x = 273,214,805,620.14/434,728.20
  6. Step 6: Final answer
    x = 628,472.70

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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.