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Finding the Fourth Proportional to 1,034.07, 1,427.16 and 614.61

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Solution

The fourth proportional to 1,034.07, 1,427.16 and 614.61 is: 848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.07 : 1,427.16 = 614.61 : x
  2. Step 2: Convert to fraction form
    1,034.07/1,427.16 = 614.61/x
  3. Step 3: Cross multiply
    1,034.07x = 1,427.16 × 614.61
  4. Step 4: Simplify right side
    1,034.07x = 877,146.81
  5. Step 5: Solve for x
    x = 877,146.81/1,034.07
  6. Step 6: Final answer
    x = 848.25

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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.