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Finding the Fourth Proportional to 488,347.30, 731,646.15 and 301,140.10

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Solution

The fourth proportional to 488,347.30, 731,646.15 and 301,140.10 is: 451,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,347.30 : 731,646.15 = 301,140.10 : x
  2. Step 2: Convert to fraction form
    488,347.30/731,646.15 = 301,140.10/x
  3. Step 3: Cross multiply
    488,347.30x = 731,646.15 × 301,140.10
  4. Step 4: Simplify right side
    488,347.30x = 220,327,994,775.62
  5. Step 5: Solve for x
    x = 220,327,994,775.62/488,347.30
  6. Step 6: Final answer
    x = 451,170.70

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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.