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Finding the Fourth Proportional to 384,690.65, 576,520.13 and 299,404.52

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Solution

The fourth proportional to 384,690.65, 576,520.13 and 299,404.52 is: 448,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,690.65 : 576,520.13 = 299,404.52 : x
  2. Step 2: Convert to fraction form
    384,690.65/576,520.13 = 299,404.52/x
  3. Step 3: Cross multiply
    384,690.65x = 576,520.13 × 299,404.52
  4. Step 4: Simplify right side
    384,690.65x = 172,612,730,658.90
  5. Step 5: Solve for x
    x = 172,612,730,658.90/384,690.65
  6. Step 6: Final answer
    x = 448,705.29

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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.