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Finding the Fourth Proportional to 834,874.56, 1,251,728.16 and 266,064.96

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Solution

The fourth proportional to 834,874.56, 1,251,728.16 and 266,064.96 is: 398,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,874.56 : 1,251,728.16 = 266,064.96 : x
  2. Step 2: Convert to fraction form
    834,874.56/1,251,728.16 = 266,064.96/x
  3. Step 3: Cross multiply
    834,874.56x = 1,251,728.16 × 266,064.96
  4. Step 4: Simplify right side
    834,874.56x = 333,041,002,821.27
  5. Step 5: Solve for x
    x = 333,041,002,821.27/834,874.56
  6. Step 6: Final answer
    x = 398,911.43

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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.