Home / 442,984.70-664,023.45-217,999.10

Finding the Fourth Proportional to 442,984.70, 664,023.45 and 217,999.10

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Solution

The fourth proportional to 442,984.70, 664,023.45 and 217,999.10 is: 326,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,984.70 : 664,023.45 = 217,999.10 : x
  2. Step 2: Convert to fraction form
    442,984.70/664,023.45 = 217,999.10/x
  3. Step 3: Cross multiply
    442,984.70x = 664,023.45 × 217,999.10
  4. Step 4: Simplify right side
    442,984.70x = 144,756,514,478.90
  5. Step 5: Solve for x
    x = 144,756,514,478.90/442,984.70
  6. Step 6: Final answer
    x = 326,775.43

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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.