Home / 981,303.75-1,471,955.67-261,647.91

Finding the Fourth Proportional to 981,303.75, 1,471,955.67 and 261,647.91

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Solution

The fourth proportional to 981,303.75, 1,471,955.67 and 261,647.91 is: 392,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,303.75 : 1,471,955.67 = 261,647.91 : x
  2. Step 2: Convert to fraction form
    981,303.75/1,471,955.67 = 261,647.91/x
  3. Step 3: Cross multiply
    981,303.75x = 1,471,955.67 × 261,647.91
  4. Step 4: Simplify right side
    981,303.75x = 385,134,124,668.15
  5. Step 5: Solve for x
    x = 385,134,124,668.15/981,303.75
  6. Step 6: Final answer
    x = 392,471.88

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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.