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Finding the Fourth Proportional to 659,393.78, 910,012.29 and 369,034.44

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Solution

The fourth proportional to 659,393.78, 910,012.29 and 369,034.44 is: 509,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,393.78 : 910,012.29 = 369,034.44 : x
  2. Step 2: Convert to fraction form
    659,393.78/910,012.29 = 369,034.44/x
  3. Step 3: Cross multiply
    659,393.78x = 910,012.29 × 369,034.44
  4. Step 4: Simplify right side
    659,393.78x = 335,825,870,360.62
  5. Step 5: Solve for x
    x = 335,825,870,360.62/659,393.78
  6. Step 6: Final answer
    x = 509,294.87

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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.