Home / 435,486.20-653,229.30-323,511.80

Finding the Fourth Proportional to 435,486.20, 653,229.30 and 323,511.80

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Solution

The fourth proportional to 435,486.20, 653,229.30 and 323,511.80 is: 485,267.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,486.20 : 653,229.30 = 323,511.80 : x
  2. Step 2: Convert to fraction form
    435,486.20/653,229.30 = 323,511.80/x
  3. Step 3: Cross multiply
    435,486.20x = 653,229.30 × 323,511.80
  4. Step 4: Simplify right side
    435,486.20x = 211,327,386,655.74
  5. Step 5: Solve for x
    x = 211,327,386,655.74/435,486.20
  6. Step 6: Final answer
    x = 485,267.70

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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.