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Finding the Fourth Proportional to 488,363.40, 732,545.10 and 328,931.10

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Solution

The fourth proportional to 488,363.40, 732,545.10 and 328,931.10 is: 493,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,363.40 : 732,545.10 = 328,931.10 : x
  2. Step 2: Convert to fraction form
    488,363.40/732,545.10 = 328,931.10/x
  3. Step 3: Cross multiply
    488,363.40x = 732,545.10 × 328,931.10
  4. Step 4: Simplify right side
    488,363.40x = 240,956,865,542.61
  5. Step 5: Solve for x
    x = 240,956,865,542.61/488,363.40
  6. Step 6: Final answer
    x = 493,396.65

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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.