Home / 497,972.55-687,255.34-304,493.66

Finding the Fourth Proportional to 497,972.55, 687,255.34 and 304,493.66

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Solution

The fourth proportional to 497,972.55, 687,255.34 and 304,493.66 is: 420,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,972.55 : 687,255.34 = 304,493.66 : x
  2. Step 2: Convert to fraction form
    497,972.55/687,255.34 = 304,493.66/x
  3. Step 3: Cross multiply
    497,972.55x = 687,255.34 × 304,493.66
  4. Step 4: Simplify right side
    497,972.55x = 209,264,890,394.87
  5. Step 5: Solve for x
    x = 209,264,890,394.87/497,972.55
  6. Step 6: Final answer
    x = 420,233.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.