Home / 2,120,031.62-3,180,747.28-857,170.34

Finding the Fourth Proportional to 2,120,031.62, 3,180,747.28 and 857,170.34

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Solution

The fourth proportional to 2,120,031.62, 3,180,747.28 and 857,170.34 is: 1,286,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,031.62 : 3,180,747.28 = 857,170.34 : x
  2. Step 2: Convert to fraction form
    2,120,031.62/3,180,747.28 = 857,170.34/x
  3. Step 3: Cross multiply
    2,120,031.62x = 3,180,747.28 × 857,170.34
  4. Step 4: Simplify right side
    2,120,031.62x = 2,726,442,227,451.67
  5. Step 5: Solve for x
    x = 2,726,442,227,451.67/2,120,031.62
  6. Step 6: Final answer
    x = 1,286,038.47

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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.