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Finding the Fourth Proportional to 662,115.60, 993,691.80 and 307,173.60

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Solution

The fourth proportional to 662,115.60, 993,691.80 and 307,173.60 is: 461,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,115.60 : 993,691.80 = 307,173.60 : x
  2. Step 2: Convert to fraction form
    662,115.60/993,691.80 = 307,173.60/x
  3. Step 3: Cross multiply
    662,115.60x = 993,691.80 × 307,173.60
  4. Step 4: Simplify right side
    662,115.60x = 305,235,887,496.48
  5. Step 5: Solve for x
    x = 305,235,887,496.48/662,115.60
  6. Step 6: Final answer
    x = 461,000.90

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1.5x scale

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.