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Finding the Fourth Proportional to 898.17, 1,239.17 and 525.08

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Solution

The fourth proportional to 898.17, 1,239.17 and 525.08 is: 724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.17 : 1,239.17 = 525.08 : x
  2. Step 2: Convert to fraction form
    898.17/1,239.17 = 525.08/x
  3. Step 3: Cross multiply
    898.17x = 1,239.17 × 525.08
  4. Step 4: Simplify right side
    898.17x = 650,654.56
  5. Step 5: Solve for x
    x = 650,654.56/898.17
  6. Step 6: Final answer
    x = 724.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.