Home / 725,005.28-1,087,508.88-275,620.64

Finding the Fourth Proportional to 725,005.28, 1,087,508.88 and 275,620.64

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Solution

The fourth proportional to 725,005.28, 1,087,508.88 and 275,620.64 is: 413,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,005.28 : 1,087,508.88 = 275,620.64 : x
  2. Step 2: Convert to fraction form
    725,005.28/1,087,508.88 = 275,620.64/x
  3. Step 3: Cross multiply
    725,005.28x = 1,087,508.88 × 275,620.64
  4. Step 4: Simplify right side
    725,005.28x = 299,739,893,511.28
  5. Step 5: Solve for x
    x = 299,739,893,511.28/725,005.28
  6. Step 6: Final answer
    x = 413,431.32

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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.