Home / 2,107,886.68-3,162,333.84-687,945.34

Finding the Fourth Proportional to 2,107,886.68, 3,162,333.84 and 687,945.34

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Solution

The fourth proportional to 2,107,886.68, 3,162,333.84 and 687,945.34 is: 1,032,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,886.68 : 3,162,333.84 = 687,945.34 : x
  2. Step 2: Convert to fraction form
    2,107,886.68/3,162,333.84 = 687,945.34/x
  3. Step 3: Cross multiply
    2,107,886.68x = 3,162,333.84 × 687,945.34
  4. Step 4: Simplify right side
    2,107,886.68x = 2,175,512,828,752.31
  5. Step 5: Solve for x
    x = 2,175,512,828,752.31/2,107,886.68
  6. Step 6: Final answer
    x = 1,032,082.44

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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.