Home / 664,716.20-996,959.10-243,775.40

Finding the Fourth Proportional to 664,716.20, 996,959.10 and 243,775.40

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Solution

The fourth proportional to 664,716.20, 996,959.10 and 243,775.40 is: 365,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,716.20 : 996,959.10 = 243,775.40 : x
  2. Step 2: Convert to fraction form
    664,716.20/996,959.10 = 243,775.40/x
  3. Step 3: Cross multiply
    664,716.20x = 996,959.10 × 243,775.40
  4. Step 4: Simplify right side
    664,716.20x = 243,034,103,386.14
  5. Step 5: Solve for x
    x = 243,034,103,386.14/664,716.20
  6. Step 6: Final answer
    x = 365,620.85

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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.