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Finding the Fourth Proportional to 867,794.20, 1,301,691.30 and 657,842.20

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Solution

The fourth proportional to 867,794.20, 1,301,691.30 and 657,842.20 is: 986,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,794.20 : 1,301,691.30 = 657,842.20 : x
  2. Step 2: Convert to fraction form
    867,794.20/1,301,691.30 = 657,842.20/x
  3. Step 3: Cross multiply
    867,794.20x = 1,301,691.30 × 657,842.20
  4. Step 4: Simplify right side
    867,794.20x = 856,307,468,512.86
  5. Step 5: Solve for x
    x = 856,307,468,512.86/867,794.20
  6. Step 6: Final answer
    x = 986,763.30

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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.