Home / 498,912.60-748,466.10-199,342.20

Finding the Fourth Proportional to 498,912.60, 748,466.10 and 199,342.20

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Solution

The fourth proportional to 498,912.60, 748,466.10 and 199,342.20 is: 299,052.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,912.60 : 748,466.10 = 199,342.20 : x
  2. Step 2: Convert to fraction form
    498,912.60/748,466.10 = 199,342.20/x
  3. Step 3: Cross multiply
    498,912.60x = 748,466.10 × 199,342.20
  4. Step 4: Simplify right side
    498,912.60x = 149,200,878,999.42
  5. Step 5: Solve for x
    x = 149,200,878,999.42/498,912.60
  6. Step 6: Final answer
    x = 299,052.14

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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.