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Finding the Fourth Proportional to 498,689.60, 748,034.40 and 490,816.40

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Solution

The fourth proportional to 498,689.60, 748,034.40 and 490,816.40 is: 736,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,689.60 : 748,034.40 = 490,816.40 : x
  2. Step 2: Convert to fraction form
    498,689.60/748,034.40 = 490,816.40/x
  3. Step 3: Cross multiply
    498,689.60x = 748,034.40 × 490,816.40
  4. Step 4: Simplify right side
    498,689.60x = 367,147,551,284.16
  5. Step 5: Solve for x
    x = 367,147,551,284.16/498,689.60
  6. Step 6: Final answer
    x = 736,224.60

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Similar ratio
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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.