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Finding the Fourth Proportional to 488,215.40, 732,755.10 and 288,285.80

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Solution

The fourth proportional to 488,215.40, 732,755.10 and 288,285.80 is: 432,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,215.40 : 732,755.10 = 288,285.80 : x
  2. Step 2: Convert to fraction form
    488,215.40/732,755.10 = 288,285.80/x
  3. Step 3: Cross multiply
    488,215.40x = 732,755.10 × 288,285.80
  4. Step 4: Simplify right side
    488,215.40x = 211,242,890,207.58
  5. Step 5: Solve for x
    x = 211,242,890,207.58/488,215.40
  6. Step 6: Final answer
    x = 432,683.79

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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.