Home / 1,025,988.45-1,416,771.92-639,463.54

Finding the Fourth Proportional to 1,025,988.45, 1,416,771.92 and 639,463.54

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Solution

The fourth proportional to 1,025,988.45, 1,416,771.92 and 639,463.54 is: 883,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,988.45 : 1,416,771.92 = 639,463.54 : x
  2. Step 2: Convert to fraction form
    1,025,988.45/1,416,771.92 = 639,463.54/x
  3. Step 3: Cross multiply
    1,025,988.45x = 1,416,771.92 × 639,463.54
  4. Step 4: Simplify right side
    1,025,988.45x = 905,973,987,335.80
  5. Step 5: Solve for x
    x = 905,973,987,335.80/1,025,988.45
  6. Step 6: Final answer
    x = 883,025.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.