Home / 429,844.28-644,597.48-145,456.52

Finding the Fourth Proportional to 429,844.28, 644,597.48 and 145,456.52

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Solution

The fourth proportional to 429,844.28, 644,597.48 and 145,456.52 is: 218,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,844.28 : 644,597.48 = 145,456.52 : x
  2. Step 2: Convert to fraction form
    429,844.28/644,597.48 = 145,456.52/x
  3. Step 3: Cross multiply
    429,844.28x = 644,597.48 × 145,456.52
  4. Step 4: Simplify right side
    429,844.28x = 93,760,906,241.57
  5. Step 5: Solve for x
    x = 93,760,906,241.57/429,844.28
  6. Step 6: Final answer
    x = 218,127.61

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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.