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Finding the Fourth Proportional to 887,718, 1,331,912.40 and 532,979.52

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Solution

The fourth proportional to 887,718, 1,331,912.40 and 532,979.52 is: 799,670.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,718 : 1,331,912.40 = 532,979.52 : x
  2. Step 2: Convert to fraction form
    887,718/1,331,912.40 = 532,979.52/x
  3. Step 3: Cross multiply
    887,718x = 1,331,912.40 × 532,979.52
  4. Step 4: Simplify right side
    887,718x = 709,882,031,634.05
  5. Step 5: Solve for x
    x = 709,882,031,634.05/887,718
  6. Step 6: Final answer
    x = 799,670.65

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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.