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Finding the Fourth Proportional to 865,682.80, 1,298,524.20 and 832,505.20

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Solution

The fourth proportional to 865,682.80, 1,298,524.20 and 832,505.20 is: 1,248,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,682.80 : 1,298,524.20 = 832,505.20 : x
  2. Step 2: Convert to fraction form
    865,682.80/1,298,524.20 = 832,505.20/x
  3. Step 3: Cross multiply
    865,682.80x = 1,298,524.20 × 832,505.20
  4. Step 4: Simplify right side
    865,682.80x = 1,081,028,148,825.84
  5. Step 5: Solve for x
    x = 1,081,028,148,825.84/865,682.80
  6. Step 6: Final answer
    x = 1,248,757.80

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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.