Home / 842,096.70-1,263,145.05-486,927.90

Finding the Fourth Proportional to 842,096.70, 1,263,145.05 and 486,927.90

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Solution

The fourth proportional to 842,096.70, 1,263,145.05 and 486,927.90 is: 730,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,096.70 : 1,263,145.05 = 486,927.90 : x
  2. Step 2: Convert to fraction form
    842,096.70/1,263,145.05 = 486,927.90/x
  3. Step 3: Cross multiply
    842,096.70x = 1,263,145.05 × 486,927.90
  4. Step 4: Simplify right side
    842,096.70x = 615,060,566,591.90
  5. Step 5: Solve for x
    x = 615,060,566,591.90/842,096.70
  6. Step 6: Final answer
    x = 730,391.85

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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.