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Finding the Fourth Proportional to 488,718.40, 735,045.90 and 437,542.60

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Solution

The fourth proportional to 488,718.40, 735,045.90 and 437,542.60 is: 658,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,718.40 : 735,045.90 = 437,542.60 : x
  2. Step 2: Convert to fraction form
    488,718.40/735,045.90 = 437,542.60/x
  3. Step 3: Cross multiply
    488,718.40x = 735,045.90 × 437,542.60
  4. Step 4: Simplify right side
    488,718.40x = 321,613,894,205.34
  5. Step 5: Solve for x
    x = 321,613,894,205.34/488,718.40
  6. Step 6: Final answer
    x = 658,076.09

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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.