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Finding the Fourth Proportional to 800,587.80, 1,201,562.10 and 327,612.60

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Solution

The fourth proportional to 800,587.80, 1,201,562.10 and 327,612.60 is: 491,697.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,587.80 : 1,201,562.10 = 327,612.60 : x
  2. Step 2: Convert to fraction form
    800,587.80/1,201,562.10 = 327,612.60/x
  3. Step 3: Cross multiply
    800,587.80x = 1,201,562.10 × 327,612.60
  4. Step 4: Simplify right side
    800,587.80x = 393,646,883,642.46
  5. Step 5: Solve for x
    x = 393,646,883,642.46/800,587.80
  6. Step 6: Final answer
    x = 491,697.33

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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.