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Finding the Fourth Proportional to 887.52, 1,331.27 and 400.00

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Solution

The fourth proportional to 887.52, 1,331.27 and 400.00 is: 599.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.52 : 1,331.27 = 400.00 : x
  2. Step 2: Convert to fraction form
    887.52/1,331.27 = 400.00/x
  3. Step 3: Cross multiply
    887.52x = 1,331.27 × 400.00
  4. Step 4: Simplify right side
    887.52x = 532,501.34
  5. Step 5: Solve for x
    x = 532,501.34/887.52
  6. Step 6: Final answer
    x = 599.99

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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.