Home / 1,040,238.90-1,560,657.24-432,909

Finding the Fourth Proportional to 1,040,238.90, 1,560,657.24 and 432,909

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Solution

The fourth proportional to 1,040,238.90, 1,560,657.24 and 432,909 is: 649,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,238.90 : 1,560,657.24 = 432,909 : x
  2. Step 2: Convert to fraction form
    1,040,238.90/1,560,657.24 = 432,909/x
  3. Step 3: Cross multiply
    1,040,238.90x = 1,560,657.24 × 432,909
  4. Step 4: Simplify right side
    1,040,238.90x = 675,622,565,111.16
  5. Step 5: Solve for x
    x = 675,622,565,111.16/1,040,238.90
  6. Step 6: Final answer
    x = 649,487.89

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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.