Home / 2,105,672.10-3,158,508.15-685,871.70

Finding the Fourth Proportional to 2,105,672.10, 3,158,508.15 and 685,871.70

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Solution

The fourth proportional to 2,105,672.10, 3,158,508.15 and 685,871.70 is: 1,028,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,672.10 : 3,158,508.15 = 685,871.70 : x
  2. Step 2: Convert to fraction form
    2,105,672.10/3,158,508.15 = 685,871.70/x
  3. Step 3: Cross multiply
    2,105,672.10x = 3,158,508.15 × 685,871.70
  4. Step 4: Simplify right side
    2,105,672.10x = 2,166,331,354,304.35
  5. Step 5: Solve for x
    x = 2,166,331,354,304.35/2,105,672.10
  6. Step 6: Final answer
    x = 1,028,807.55

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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.