Home / 499,039.60-748,559.40-183,431.20

Finding the Fourth Proportional to 499,039.60, 748,559.40 and 183,431.20

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Solution

The fourth proportional to 499,039.60, 748,559.40 and 183,431.20 is: 275,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,039.60 : 748,559.40 = 183,431.20 : x
  2. Step 2: Convert to fraction form
    499,039.60/748,559.40 = 183,431.20/x
  3. Step 3: Cross multiply
    499,039.60x = 748,559.40 × 183,431.20
  4. Step 4: Simplify right side
    499,039.60x = 137,309,149,013.28
  5. Step 5: Solve for x
    x = 137,309,149,013.28/499,039.60
  6. Step 6: Final answer
    x = 275,146.80

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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.