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Finding the Fourth Proportional to 498,851.20, 748,276.80 and 299,396.80

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Solution

The fourth proportional to 498,851.20, 748,276.80 and 299,396.80 is: 449,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,851.20 : 748,276.80 = 299,396.80 : x
  2. Step 2: Convert to fraction form
    498,851.20/748,276.80 = 299,396.80/x
  3. Step 3: Cross multiply
    498,851.20x = 748,276.80 × 299,396.80
  4. Step 4: Simplify right side
    498,851.20x = 224,031,679,434.24
  5. Step 5: Solve for x
    x = 224,031,679,434.24/498,851.20
  6. Step 6: Final answer
    x = 449,095.20

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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.