Home / 725,083.60-1,087,625.40-192,686.80

Finding the Fourth Proportional to 725,083.60, 1,087,625.40 and 192,686.80

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Solution

The fourth proportional to 725,083.60, 1,087,625.40 and 192,686.80 is: 289,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,083.60 : 1,087,625.40 = 192,686.80 : x
  2. Step 2: Convert to fraction form
    725,083.60/1,087,625.40 = 192,686.80/x
  3. Step 3: Cross multiply
    725,083.60x = 1,087,625.40 × 192,686.80
  4. Step 4: Simplify right side
    725,083.60x = 209,571,057,924.72
  5. Step 5: Solve for x
    x = 209,571,057,924.72/725,083.60
  6. Step 6: Final answer
    x = 289,030.20

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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.