Home / 778,964.40-1,168,446.60-443,041.20

Finding the Fourth Proportional to 778,964.40, 1,168,446.60 and 443,041.20

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Solution

The fourth proportional to 778,964.40, 1,168,446.60 and 443,041.20 is: 664,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,964.40 : 1,168,446.60 = 443,041.20 : x
  2. Step 2: Convert to fraction form
    778,964.40/1,168,446.60 = 443,041.20/x
  3. Step 3: Cross multiply
    778,964.40x = 1,168,446.60 × 443,041.20
  4. Step 4: Simplify right side
    778,964.40x = 517,669,983,799.92
  5. Step 5: Solve for x
    x = 517,669,983,799.92/778,964.40
  6. Step 6: Final answer
    x = 664,561.80

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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.