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Finding the Fourth Proportional to 498,836.60, 748,254.90 and 490,963.40

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Solution

The fourth proportional to 498,836.60, 748,254.90 and 490,963.40 is: 736,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,836.60 : 748,254.90 = 490,963.40 : x
  2. Step 2: Convert to fraction form
    498,836.60/748,254.90 = 490,963.40/x
  3. Step 3: Cross multiply
    498,836.60x = 748,254.90 × 490,963.40
  4. Step 4: Simplify right side
    498,836.60x = 367,365,769,770.66
  5. Step 5: Solve for x
    x = 367,365,769,770.66/498,836.60
  6. Step 6: Final answer
    x = 736,445.10

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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.