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Finding the Fourth Proportional to 914.46, 1,262.52 and 814.56

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Solution

The fourth proportional to 914.46, 1,262.52 and 814.56 is: 1,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.46 : 1,262.52 = 814.56 : x
  2. Step 2: Convert to fraction form
    914.46/1,262.52 = 814.56/x
  3. Step 3: Cross multiply
    914.46x = 1,262.52 × 814.56
  4. Step 4: Simplify right side
    914.46x = 1,028,398.29
  5. Step 5: Solve for x
    x = 1,028,398.29/914.46
  6. Step 6: Final answer
    x = 1,124.60

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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.