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Finding the Fourth Proportional to 605,404.80, 907,669.80 and 339,246.90

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Solution

The fourth proportional to 605,404.80, 907,669.80 and 339,246.90 is: 508,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,404.80 : 907,669.80 = 339,246.90 : x
  2. Step 2: Convert to fraction form
    605,404.80/907,669.80 = 339,246.90/x
  3. Step 3: Cross multiply
    605,404.80x = 907,669.80 × 339,246.90
  4. Step 4: Simplify right side
    605,404.80x = 307,924,165,873.62
  5. Step 5: Solve for x
    x = 307,924,165,873.62/605,404.80
  6. Step 6: Final answer
    x = 508,625.25

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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.