Home / 725,240.10-1,087,696.17-275,800.80

Finding the Fourth Proportional to 725,240.10, 1,087,696.17 and 275,800.80

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Solution

The fourth proportional to 725,240.10, 1,087,696.17 and 275,800.80 is: 413,638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,240.10 : 1,087,696.17 = 275,800.80 : x
  2. Step 2: Convert to fraction form
    725,240.10/1,087,696.17 = 275,800.80/x
  3. Step 3: Cross multiply
    725,240.10x = 1,087,696.17 × 275,800.80
  4. Step 4: Simplify right side
    725,240.10x = 299,987,473,842.94
  5. Step 5: Solve for x
    x = 299,987,473,842.94/725,240.10
  6. Step 6: Final answer
    x = 413,638.84

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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.