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Finding the Fourth Proportional to 571,988.34, 857,987.52 and 145,524.55

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Solution

The fourth proportional to 571,988.34, 857,987.52 and 145,524.55 is: 218,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,988.34 : 857,987.52 = 145,524.55 : x
  2. Step 2: Convert to fraction form
    571,988.34/857,987.52 = 145,524.55/x
  3. Step 3: Cross multiply
    571,988.34x = 857,987.52 × 145,524.55
  4. Step 4: Simplify right side
    571,988.34x = 124,858,247,753.62
  5. Step 5: Solve for x
    x = 124,858,247,753.62/571,988.34
  6. Step 6: Final answer
    x = 218,288.10

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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.