Home / 1,383,397.61-2,072,317.33-688,872.17

Finding the Fourth Proportional to 1,383,397.61, 2,072,317.33 and 688,872.17

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Solution

The fourth proportional to 1,383,397.61, 2,072,317.33 and 688,872.17 is: 1,031,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,397.61 : 2,072,317.33 = 688,872.17 : x
  2. Step 2: Convert to fraction form
    1,383,397.61/2,072,317.33 = 688,872.17/x
  3. Step 3: Cross multiply
    1,383,397.61x = 2,072,317.33 × 688,872.17
  4. Step 4: Simplify right side
    1,383,397.61x = 1,427,561,733,353.05
  5. Step 5: Solve for x
    x = 1,427,561,733,353.05/1,383,397.61
  6. Step 6: Final answer
    x = 1,031,924.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.