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Finding the Fourth Proportional to 486,727.60, 731,646.60 and 347,450.80

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Solution

The fourth proportional to 486,727.60, 731,646.60 and 347,450.80 is: 522,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,727.60 : 731,646.60 = 347,450.80 : x
  2. Step 2: Convert to fraction form
    486,727.60/731,646.60 = 347,450.80/x
  3. Step 3: Cross multiply
    486,727.60x = 731,646.60 × 347,450.80
  4. Step 4: Simplify right side
    486,727.60x = 254,211,196,487.28
  5. Step 5: Solve for x
    x = 254,211,196,487.28/486,727.60
  6. Step 6: Final answer
    x = 522,286.38

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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.