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Finding the Fourth Proportional to 535.29, 801.23 and 432.87

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Solution

The fourth proportional to 535.29, 801.23 and 432.87 is: 647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.29 : 801.23 = 432.87 : x
  2. Step 2: Convert to fraction form
    535.29/801.23 = 432.87/x
  3. Step 3: Cross multiply
    535.29x = 801.23 × 432.87
  4. Step 4: Simplify right side
    535.29x = 346,826.27
  5. Step 5: Solve for x
    x = 346,826.27/535.29
  6. Step 6: Final answer
    x = 647.92

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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.