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Finding the Fourth Proportional to 442,260.40, 662,710.20 and 329,411.20

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Solution

The fourth proportional to 442,260.40, 662,710.20 and 329,411.20 is: 493,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,260.40 : 662,710.20 = 329,411.20 : x
  2. Step 2: Convert to fraction form
    442,260.40/662,710.20 = 329,411.20/x
  3. Step 3: Cross multiply
    442,260.40x = 662,710.20 × 329,411.20
  4. Step 4: Simplify right side
    442,260.40x = 218,304,162,234.24
  5. Step 5: Solve for x
    x = 218,304,162,234.24/442,260.40
  6. Step 6: Final answer
    x = 493,610.01

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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.