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Finding the Fourth Proportional to 488,014.60, 732,021.90 and 172,503.40

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Solution

The fourth proportional to 488,014.60, 732,021.90 and 172,503.40 is: 258,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,014.60 : 732,021.90 = 172,503.40 : x
  2. Step 2: Convert to fraction form
    488,014.60/732,021.90 = 172,503.40/x
  3. Step 3: Cross multiply
    488,014.60x = 732,021.90 × 172,503.40
  4. Step 4: Simplify right side
    488,014.60x = 126,276,266,624.46
  5. Step 5: Solve for x
    x = 126,276,266,624.46/488,014.60
  6. Step 6: Final answer
    x = 258,755.10

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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.