Home / 981,347.70-1,472,021.55-768,771.30

Finding the Fourth Proportional to 981,347.70, 1,472,021.55 and 768,771.30

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Solution

The fourth proportional to 981,347.70, 1,472,021.55 and 768,771.30 is: 1,153,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,347.70 : 1,472,021.55 = 768,771.30 : x
  2. Step 2: Convert to fraction form
    981,347.70/1,472,021.55 = 768,771.30/x
  3. Step 3: Cross multiply
    981,347.70x = 1,472,021.55 × 768,771.30
  4. Step 4: Simplify right side
    981,347.70x = 1,131,647,920,621.52
  5. Step 5: Solve for x
    x = 1,131,647,920,621.52/981,347.70
  6. Step 6: Final answer
    x = 1,153,156.95

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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.