Home / 859,780.95-1,289,683.82-327,331.23

Finding the Fourth Proportional to 859,780.95, 1,289,683.82 and 327,331.23

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Solution

The fourth proportional to 859,780.95, 1,289,683.82 and 327,331.23 is: 491,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,780.95 : 1,289,683.82 = 327,331.23 : x
  2. Step 2: Convert to fraction form
    859,780.95/1,289,683.82 = 327,331.23/x
  3. Step 3: Cross multiply
    859,780.95x = 1,289,683.82 × 327,331.23
  4. Step 4: Simplify right side
    859,780.95x = 422,153,791,111.70
  5. Step 5: Solve for x
    x = 422,153,791,111.70/859,780.95
  6. Step 6: Final answer
    x = 491,001.56

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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.