Home / 398,924.36-597,966.48-132,613.40

Finding the Fourth Proportional to 398,924.36, 597,966.48 and 132,613.40

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Solution

The fourth proportional to 398,924.36, 597,966.48 and 132,613.40 is: 198,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,924.36 : 597,966.48 = 132,613.40 : x
  2. Step 2: Convert to fraction form
    398,924.36/597,966.48 = 132,613.40/x
  3. Step 3: Cross multiply
    398,924.36x = 597,966.48 × 132,613.40
  4. Step 4: Simplify right side
    398,924.36x = 79,298,367,998.83
  5. Step 5: Solve for x
    x = 79,298,367,998.83/398,924.36
  6. Step 6: Final answer
    x = 198,780.46

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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.