Home / 888,000.80-1,332,001.20-326,962.40

Finding the Fourth Proportional to 888,000.80, 1,332,001.20 and 326,962.40

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Solution

The fourth proportional to 888,000.80, 1,332,001.20 and 326,962.40 is: 490,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,000.80 : 1,332,001.20 = 326,962.40 : x
  2. Step 2: Convert to fraction form
    888,000.80/1,332,001.20 = 326,962.40/x
  3. Step 3: Cross multiply
    888,000.80x = 1,332,001.20 × 326,962.40
  4. Step 4: Simplify right side
    888,000.80x = 435,514,309,154.88
  5. Step 5: Solve for x
    x = 435,514,309,154.88/888,000.80
  6. Step 6: Final answer
    x = 490,443.60

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Double scale
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Similar ratio
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1.5x scale

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.