Home / 748,335.20-1,122,502.80-215,873.60

Finding the Fourth Proportional to 748,335.20, 1,122,502.80 and 215,873.60

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Solution

The fourth proportional to 748,335.20, 1,122,502.80 and 215,873.60 is: 323,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,335.20 : 1,122,502.80 = 215,873.60 : x
  2. Step 2: Convert to fraction form
    748,335.20/1,122,502.80 = 215,873.60/x
  3. Step 3: Cross multiply
    748,335.20x = 1,122,502.80 × 215,873.60
  4. Step 4: Simplify right side
    748,335.20x = 242,318,720,446.08
  5. Step 5: Solve for x
    x = 242,318,720,446.08/748,335.20
  6. Step 6: Final answer
    x = 323,810.40

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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.