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Finding the Fourth Proportional to 605,487.60, 908,231.40 and 546,438.60

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Solution

The fourth proportional to 605,487.60, 908,231.40 and 546,438.60 is: 819,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,487.60 : 908,231.40 = 546,438.60 : x
  2. Step 2: Convert to fraction form
    605,487.60/908,231.40 = 546,438.60/x
  3. Step 3: Cross multiply
    605,487.60x = 908,231.40 × 546,438.60
  4. Step 4: Simplify right side
    605,487.60x = 496,292,694,692.04
  5. Step 5: Solve for x
    x = 496,292,694,692.04/605,487.60
  6. Step 6: Final answer
    x = 819,657.90

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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.