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Finding the Fourth Proportional to 399,217.60, 597,951.60 and 346,729.60

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Solution

The fourth proportional to 399,217.60, 597,951.60 and 346,729.60 is: 519,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,217.60 : 597,951.60 = 346,729.60 : x
  2. Step 2: Convert to fraction form
    399,217.60/597,951.60 = 346,729.60/x
  3. Step 3: Cross multiply
    399,217.60x = 597,951.60 × 346,729.60
  4. Step 4: Simplify right side
    399,217.60x = 207,327,519,087.36
  5. Step 5: Solve for x
    x = 207,327,519,087.36/399,217.60
  6. Step 6: Final answer
    x = 519,334.62

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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.