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Finding the Fourth Proportional to 498,959.40, 748,908.90 and 262,471.80

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Solution

The fourth proportional to 498,959.40, 748,908.90 and 262,471.80 is: 393,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,959.40 : 748,908.90 = 262,471.80 : x
  2. Step 2: Convert to fraction form
    498,959.40/748,908.90 = 262,471.80/x
  3. Step 3: Cross multiply
    498,959.40x = 748,908.90 × 262,471.80
  4. Step 4: Simplify right side
    498,959.40x = 196,567,467,019.02
  5. Step 5: Solve for x
    x = 196,567,467,019.02/498,959.40
  6. Step 6: Final answer
    x = 393,954.83

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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.