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Finding the Fourth Proportional to 1,229,047, 1,696,084.86 and 663,799

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Solution

The fourth proportional to 1,229,047, 1,696,084.86 and 663,799 is: 916,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,047 : 1,696,084.86 = 663,799 : x
  2. Step 2: Convert to fraction form
    1,229,047/1,696,084.86 = 663,799/x
  3. Step 3: Cross multiply
    1,229,047x = 1,696,084.86 × 663,799
  4. Step 4: Simplify right side
    1,229,047x = 1,125,859,433,983.14
  5. Step 5: Solve for x
    x = 1,125,859,433,983.14/1,229,047
  6. Step 6: Final answer
    x = 916,042.62

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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.