Home / 676,785.09-1,015,403.85-221,397.06

Finding the Fourth Proportional to 676,785.09, 1,015,403.85 and 221,397.06

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Solution

The fourth proportional to 676,785.09, 1,015,403.85 and 221,397.06 is: 332,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,785.09 : 1,015,403.85 = 221,397.06 : x
  2. Step 2: Convert to fraction form
    676,785.09/1,015,403.85 = 221,397.06/x
  3. Step 3: Cross multiply
    676,785.09x = 1,015,403.85 × 221,397.06
  4. Step 4: Simplify right side
    676,785.09x = 224,807,427,102.68
  5. Step 5: Solve for x
    x = 224,807,427,102.68/676,785.09
  6. Step 6: Final answer
    x = 332,169.59

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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.