Home / 521,730.20-782,595.30-255,531.80

Finding the Fourth Proportional to 521,730.20, 782,595.30 and 255,531.80

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Solution

The fourth proportional to 521,730.20, 782,595.30 and 255,531.80 is: 383,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,730.20 : 782,595.30 = 255,531.80 : x
  2. Step 2: Convert to fraction form
    521,730.20/782,595.30 = 255,531.80/x
  3. Step 3: Cross multiply
    521,730.20x = 782,595.30 × 255,531.80
  4. Step 4: Simplify right side
    521,730.20x = 199,977,985,680.54
  5. Step 5: Solve for x
    x = 199,977,985,680.54/521,730.20
  6. Step 6: Final answer
    x = 383,297.70

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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.