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Finding the Fourth Proportional to 1,304,240.42, 1,799,828.73 and 731,278.82

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Solution

The fourth proportional to 1,304,240.42, 1,799,828.73 and 731,278.82 is: 1,009,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,240.42 : 1,799,828.73 = 731,278.82 : x
  2. Step 2: Convert to fraction form
    1,304,240.42/1,799,828.73 = 731,278.82/x
  3. Step 3: Cross multiply
    1,304,240.42x = 1,799,828.73 × 731,278.82
  4. Step 4: Simplify right side
    1,304,240.42x = 1,316,176,629,876.50
  5. Step 5: Solve for x
    x = 1,316,176,629,876.50/1,304,240.42
  6. Step 6: Final answer
    x = 1,009,151.85

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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.