Home / 445,055.20-667,582.80-326,082.40

Finding the Fourth Proportional to 445,055.20, 667,582.80 and 326,082.40

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Solution

The fourth proportional to 445,055.20, 667,582.80 and 326,082.40 is: 489,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,055.20 : 667,582.80 = 326,082.40 : x
  2. Step 2: Convert to fraction form
    445,055.20/667,582.80 = 326,082.40/x
  3. Step 3: Cross multiply
    445,055.20x = 667,582.80 × 326,082.40
  4. Step 4: Simplify right side
    445,055.20x = 217,687,001,622.72
  5. Step 5: Solve for x
    x = 217,687,001,622.72/445,055.20
  6. Step 6: Final answer
    x = 489,123.60

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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.