Home / 693,709.20-1,040,141.40-272,480.40

Finding the Fourth Proportional to 693,709.20, 1,040,141.40 and 272,480.40

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Solution

The fourth proportional to 693,709.20, 1,040,141.40 and 272,480.40 is: 408,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,709.20 : 1,040,141.40 = 272,480.40 : x
  2. Step 2: Convert to fraction form
    693,709.20/1,040,141.40 = 272,480.40/x
  3. Step 3: Cross multiply
    693,709.20x = 1,040,141.40 × 272,480.40
  4. Step 4: Simplify right side
    693,709.20x = 283,418,144,728.56
  5. Step 5: Solve for x
    x = 283,418,144,728.56/693,709.20
  6. Step 6: Final answer
    x = 408,554.69

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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.