Home / 725,479.22-1,087,299.63-410,115.38

Finding the Fourth Proportional to 725,479.22, 1,087,299.63 and 410,115.38

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Solution

The fourth proportional to 725,479.22, 1,087,299.63 and 410,115.38 is: 614,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,479.22 : 1,087,299.63 = 410,115.38 : x
  2. Step 2: Convert to fraction form
    725,479.22/1,087,299.63 = 410,115.38/x
  3. Step 3: Cross multiply
    725,479.22x = 1,087,299.63 × 410,115.38
  4. Step 4: Simplify right side
    725,479.22x = 445,918,300,931.31
  5. Step 5: Solve for x
    x = 445,918,300,931.31/725,479.22
  6. Step 6: Final answer
    x = 614,653.44

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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.