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Finding the Fourth Proportional to 1,304,247.81, 1,799,880.38 and 787,929.92

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Solution

The fourth proportional to 1,304,247.81, 1,799,880.38 and 787,929.92 is: 1,087,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,247.81 : 1,799,880.38 = 787,929.92 : x
  2. Step 2: Convert to fraction form
    1,304,247.81/1,799,880.38 = 787,929.92/x
  3. Step 3: Cross multiply
    1,304,247.81x = 1,799,880.38 × 787,929.92
  4. Step 4: Simplify right side
    1,304,247.81x = 1,418,179,603,822.97
  5. Step 5: Solve for x
    x = 1,418,179,603,822.97/1,304,247.81
  6. Step 6: Final answer
    x = 1,087,354.41

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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.