Home / 764,468.40-1,146,702.60-727,726.80

Finding the Fourth Proportional to 764,468.40, 1,146,702.60 and 727,726.80

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Solution

The fourth proportional to 764,468.40, 1,146,702.60 and 727,726.80 is: 1,091,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,468.40 : 1,146,702.60 = 727,726.80 : x
  2. Step 2: Convert to fraction form
    764,468.40/1,146,702.60 = 727,726.80/x
  3. Step 3: Cross multiply
    764,468.40x = 1,146,702.60 × 727,726.80
  4. Step 4: Simplify right side
    764,468.40x = 834,486,213,649.68
  5. Step 5: Solve for x
    x = 834,486,213,649.68/764,468.40
  6. Step 6: Final answer
    x = 1,091,590.20

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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.