Home / 801,642.09-1,202,478.48-261,899.86

Finding the Fourth Proportional to 801,642.09, 1,202,478.48 and 261,899.86

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Solution

The fourth proportional to 801,642.09, 1,202,478.48 and 261,899.86 is: 392,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,642.09 : 1,202,478.48 = 261,899.86 : x
  2. Step 2: Convert to fraction form
    801,642.09/1,202,478.48 = 261,899.86/x
  3. Step 3: Cross multiply
    801,642.09x = 1,202,478.48 × 261,899.86
  4. Step 4: Simplify right side
    801,642.09x = 314,928,945,565.01
  5. Step 5: Solve for x
    x = 314,928,945,565.01/801,642.09
  6. Step 6: Final answer
    x = 392,854.80

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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.