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Finding the Fourth Proportional to 489,008.40, 732,528.45 and 329,576.10

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Solution

The fourth proportional to 489,008.40, 732,528.45 and 329,576.10 is: 493,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,008.40 : 732,528.45 = 329,576.10 : x
  2. Step 2: Convert to fraction form
    489,008.40/732,528.45 = 329,576.10/x
  3. Step 3: Cross multiply
    489,008.40x = 732,528.45 × 329,576.10
  4. Step 4: Simplify right side
    489,008.40x = 241,423,869,690.05
  5. Step 5: Solve for x
    x = 241,423,869,690.05/489,008.40
  6. Step 6: Final answer
    x = 493,700.86

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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.