Home / 725,310.36-1,087,965.72-275,927.40

Finding the Fourth Proportional to 725,310.36, 1,087,965.72 and 275,927.40

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Solution

The fourth proportional to 725,310.36, 1,087,965.72 and 275,927.40 is: 413,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,310.36 : 1,087,965.72 = 275,927.40 : x
  2. Step 2: Convert to fraction form
    725,310.36/1,087,965.72 = 275,927.40/x
  3. Step 3: Cross multiply
    725,310.36x = 1,087,965.72 × 275,927.40
  4. Step 4: Simplify right side
    725,310.36x = 300,199,552,408.73
  5. Step 5: Solve for x
    x = 300,199,552,408.73/725,310.36
  6. Step 6: Final answer
    x = 413,891.17

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1.5x scale

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.