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Finding the Fourth Proportional to 1,304,249.82, 1,799,883.14 and 787,931.93

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Solution

The fourth proportional to 1,304,249.82, 1,799,883.14 and 787,931.93 is: 1,087,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,249.82 : 1,799,883.14 = 787,931.93 : x
  2. Step 2: Convert to fraction form
    1,304,249.82/1,799,883.14 = 787,931.93/x
  3. Step 3: Cross multiply
    1,304,249.82x = 1,799,883.14 × 787,931.93
  4. Step 4: Simplify right side
    1,304,249.82x = 1,418,185,396,274.66
  5. Step 5: Solve for x
    x = 1,418,185,396,274.66/1,304,249.82
  6. Step 6: Final answer
    x = 1,087,357.17

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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.