Home / 1,228,921.84-1,696,638.72-1,092,578.38

Finding the Fourth Proportional to 1,228,921.84, 1,696,638.72 and 1,092,578.38

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Solution

The fourth proportional to 1,228,921.84, 1,696,638.72 and 1,092,578.38 is: 1,508,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,921.84 : 1,696,638.72 = 1,092,578.38 : x
  2. Step 2: Convert to fraction form
    1,228,921.84/1,696,638.72 = 1,092,578.38/x
  3. Step 3: Cross multiply
    1,228,921.84x = 1,696,638.72 × 1,092,578.38
  4. Step 4: Simplify right side
    1,228,921.84x = 1,853,710,784,142.87
  5. Step 5: Solve for x
    x = 1,853,710,784,142.87/1,228,921.84
  6. Step 6: Final answer
    x = 1,508,404.13

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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.