Home / 748,181.80-1,122,272.70-615,212.20

Finding the Fourth Proportional to 748,181.80, 1,122,272.70 and 615,212.20

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Solution

The fourth proportional to 748,181.80, 1,122,272.70 and 615,212.20 is: 922,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,181.80 : 1,122,272.70 = 615,212.20 : x
  2. Step 2: Convert to fraction form
    748,181.80/1,122,272.70 = 615,212.20/x
  3. Step 3: Cross multiply
    748,181.80x = 1,122,272.70 × 615,212.20
  4. Step 4: Simplify right side
    748,181.80x = 690,435,856,766.94
  5. Step 5: Solve for x
    x = 690,435,856,766.94/748,181.80
  6. Step 6: Final answer
    x = 922,818.30

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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.