Home / 981,775.58-1,472,490.57-262,126.22

Finding the Fourth Proportional to 981,775.58, 1,472,490.57 and 262,126.22

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Solution

The fourth proportional to 981,775.58, 1,472,490.57 and 262,126.22 is: 393,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,775.58 : 1,472,490.57 = 262,126.22 : x
  2. Step 2: Convert to fraction form
    981,775.58/1,472,490.57 = 262,126.22/x
  3. Step 3: Cross multiply
    981,775.58x = 1,472,490.57 × 262,126.22
  4. Step 4: Simplify right side
    981,775.58x = 385,978,387,099.75
  5. Step 5: Solve for x
    x = 385,978,387,099.75/981,775.58
  6. Step 6: Final answer
    x = 393,143.19

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1.5x scale

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.