Home / 693,342.80-1,040,129.40-272,632.40

Finding the Fourth Proportional to 693,342.80, 1,040,129.40 and 272,632.40

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Solution

The fourth proportional to 693,342.80, 1,040,129.40 and 272,632.40 is: 408,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,342.80 : 1,040,129.40 = 272,632.40 : x
  2. Step 2: Convert to fraction form
    693,342.80/1,040,129.40 = 272,632.40/x
  3. Step 3: Cross multiply
    693,342.80x = 1,040,129.40 × 272,632.40
  4. Step 4: Simplify right side
    693,342.80x = 283,572,974,632.56
  5. Step 5: Solve for x
    x = 283,572,974,632.56/693,342.80
  6. Step 6: Final answer
    x = 408,993.90

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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.