Home / 1,021,514.70-1,532,272.05-911,289.90

Finding the Fourth Proportional to 1,021,514.70, 1,532,272.05 and 911,289.90

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Solution

The fourth proportional to 1,021,514.70, 1,532,272.05 and 911,289.90 is: 1,366,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,514.70 : 1,532,272.05 = 911,289.90 : x
  2. Step 2: Convert to fraction form
    1,021,514.70/1,532,272.05 = 911,289.90/x
  3. Step 3: Cross multiply
    1,021,514.70x = 1,532,272.05 × 911,289.90
  4. Step 4: Simplify right side
    1,021,514.70x = 1,396,344,043,217.30
  5. Step 5: Solve for x
    x = 1,396,344,043,217.30/1,021,514.70
  6. Step 6: Final answer
    x = 1,366,934.85

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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.