Home / 1,223,013.75-1,687,815.17-679,151.64

Finding the Fourth Proportional to 1,223,013.75, 1,687,815.17 and 679,151.64

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Solution

The fourth proportional to 1,223,013.75, 1,687,815.17 and 679,151.64 is: 937,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,013.75 : 1,687,815.17 = 679,151.64 : x
  2. Step 2: Convert to fraction form
    1,223,013.75/1,687,815.17 = 679,151.64/x
  3. Step 3: Cross multiply
    1,223,013.75x = 1,687,815.17 × 679,151.64
  4. Step 4: Simplify right side
    1,223,013.75x = 1,146,282,440,722.38
  5. Step 5: Solve for x
    x = 1,146,282,440,722.38/1,223,013.75
  6. Step 6: Final answer
    x = 937,260.47

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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.