Home / 981,144.02-1,353,979.84-545,556.66

Finding the Fourth Proportional to 981,144.02, 1,353,979.84 and 545,556.66

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Solution

The fourth proportional to 981,144.02, 1,353,979.84 and 545,556.66 is: 752,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,144.02 : 1,353,979.84 = 545,556.66 : x
  2. Step 2: Convert to fraction form
    981,144.02/1,353,979.84 = 545,556.66/x
  3. Step 3: Cross multiply
    981,144.02x = 1,353,979.84 × 545,556.66
  4. Step 4: Simplify right side
    981,144.02x = 738,672,719,217.74
  5. Step 5: Solve for x
    x = 738,672,719,217.74/981,144.02
  6. Step 6: Final answer
    x = 752,868.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.