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Finding the Fourth Proportional to 1,302.27, 1,953.56 and 457.71

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Solution

The fourth proportional to 1,302.27, 1,953.56 and 457.71 is: 686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.27 : 1,953.56 = 457.71 : x
  2. Step 2: Convert to fraction form
    1,302.27/1,953.56 = 457.71/x
  3. Step 3: Cross multiply
    1,302.27x = 1,953.56 × 457.71
  4. Step 4: Simplify right side
    1,302.27x = 894,157.92
  5. Step 5: Solve for x
    x = 894,157.92/1,302.27
  6. Step 6: Final answer
    x = 686.61

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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.