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Finding the Fourth Proportional to 1,034.45, 1,427.44 and 614.69

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Solution

The fourth proportional to 1,034.45, 1,427.44 and 614.69 is: 848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.45 : 1,427.44 = 614.69 : x
  2. Step 2: Convert to fraction form
    1,034.45/1,427.44 = 614.69/x
  3. Step 3: Cross multiply
    1,034.45x = 1,427.44 × 614.69
  4. Step 4: Simplify right side
    1,034.45x = 877,424.42
  5. Step 5: Solve for x
    x = 877,424.42/1,034.45
  6. Step 6: Final answer
    x = 848.21

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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.