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Finding the Fourth Proportional to 488,398.98, 673,984.68 and 284,483.10

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Solution

The fourth proportional to 488,398.98, 673,984.68 and 284,483.10 is: 392,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,398.98 : 673,984.68 = 284,483.10 : x
  2. Step 2: Convert to fraction form
    488,398.98/673,984.68 = 284,483.10/x
  3. Step 3: Cross multiply
    488,398.98x = 673,984.68 × 284,483.10
  4. Step 4: Simplify right side
    488,398.98x = 191,737,251,118.91
  5. Step 5: Solve for x
    x = 191,737,251,118.91/488,398.98
  6. Step 6: Final answer
    x = 392,583.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.