Home / 652,117.20-976,863.60-439,540.80

Finding the Fourth Proportional to 652,117.20, 976,863.60 and 439,540.80

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Solution

The fourth proportional to 652,117.20, 976,863.60 and 439,540.80 is: 658,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,117.20 : 976,863.60 = 439,540.80 : x
  2. Step 2: Convert to fraction form
    652,117.20/976,863.60 = 439,540.80/x
  3. Step 3: Cross multiply
    652,117.20x = 976,863.60 × 439,540.80
  4. Step 4: Simplify right side
    652,117.20x = 429,371,408,234.88
  5. Step 5: Solve for x
    x = 429,371,408,234.88/652,117.20
  6. Step 6: Final answer
    x = 658,426.75

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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.