Home / 1,916,472.20-2,872,289.10-970,104.20

Finding the Fourth Proportional to 1,916,472.20, 2,872,289.10 and 970,104.20

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Solution

The fourth proportional to 1,916,472.20, 2,872,289.10 and 970,104.20 is: 1,453,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,472.20 : 2,872,289.10 = 970,104.20 : x
  2. Step 2: Convert to fraction form
    1,916,472.20/2,872,289.10 = 970,104.20/x
  3. Step 3: Cross multiply
    1,916,472.20x = 2,872,289.10 × 970,104.20
  4. Step 4: Simplify right side
    1,916,472.20x = 2,786,419,719,524.22
  5. Step 5: Solve for x
    x = 2,786,419,719,524.22/1,916,472.20
  6. Step 6: Final answer
    x = 1,453,931.72

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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.