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Finding the Fourth Proportional to 1,331,837.52, 1,837,486.03 and 758,471.73

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Solution

The fourth proportional to 1,331,837.52, 1,837,486.03 and 758,471.73 is: 1,046,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,837.52 : 1,837,486.03 = 758,471.73 : x
  2. Step 2: Convert to fraction form
    1,331,837.52/1,837,486.03 = 758,471.73/x
  3. Step 3: Cross multiply
    1,331,837.52x = 1,837,486.03 × 758,471.73
  4. Step 4: Simplify right side
    1,331,837.52x = 1,393,681,208,024.93
  5. Step 5: Solve for x
    x = 1,393,681,208,024.93/1,331,837.52
  6. Step 6: Final answer
    x = 1,046,434.86

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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.