Home / 691,874.40-1,040,144.40-589,231.20

Finding the Fourth Proportional to 691,874.40, 1,040,144.40 and 589,231.20

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Solution

The fourth proportional to 691,874.40, 1,040,144.40 and 589,231.20 is: 885,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,874.40 : 1,040,144.40 = 589,231.20 : x
  2. Step 2: Convert to fraction form
    691,874.40/1,040,144.40 = 589,231.20/x
  3. Step 3: Cross multiply
    691,874.40x = 1,040,144.40 × 589,231.20
  4. Step 4: Simplify right side
    691,874.40x = 612,885,532,985.28
  5. Step 5: Solve for x
    x = 612,885,532,985.28/691,874.40
  6. Step 6: Final answer
    x = 885,833.52

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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.