Home / 858,306.60-1,287,459.90-227,284.20

Finding the Fourth Proportional to 858,306.60, 1,287,459.90 and 227,284.20

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Solution

The fourth proportional to 858,306.60, 1,287,459.90 and 227,284.20 is: 340,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,306.60 : 1,287,459.90 = 227,284.20 : x
  2. Step 2: Convert to fraction form
    858,306.60/1,287,459.90 = 227,284.20/x
  3. Step 3: Cross multiply
    858,306.60x = 1,287,459.90 × 227,284.20
  4. Step 4: Simplify right side
    858,306.60x = 292,619,293,403.58
  5. Step 5: Solve for x
    x = 292,619,293,403.58/858,306.60
  6. Step 6: Final answer
    x = 340,926.30

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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.