Home / 826,578.68-1,240,341.06-321,074.24

Finding the Fourth Proportional to 826,578.68, 1,240,341.06 and 321,074.24

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Solution

The fourth proportional to 826,578.68, 1,240,341.06 and 321,074.24 is: 481,795.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,578.68 : 1,240,341.06 = 321,074.24 : x
  2. Step 2: Convert to fraction form
    826,578.68/1,240,341.06 = 321,074.24/x
  3. Step 3: Cross multiply
    826,578.68x = 1,240,341.06 × 321,074.24
  4. Step 4: Simplify right side
    826,578.68x = 398,241,563,180.29
  5. Step 5: Solve for x
    x = 398,241,563,180.29/826,578.68
  6. Step 6: Final answer
    x = 481,795.11

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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.