Home / 826,776.12-1,240,176.60-287,049.48

Finding the Fourth Proportional to 826,776.12, 1,240,176.60 and 287,049.48

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Solution

The fourth proportional to 826,776.12, 1,240,176.60 and 287,049.48 is: 430,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,776.12 : 1,240,176.60 = 287,049.48 : x
  2. Step 2: Convert to fraction form
    826,776.12/1,240,176.60 = 287,049.48/x
  3. Step 3: Cross multiply
    826,776.12x = 1,240,176.60 × 287,049.48
  4. Step 4: Simplify right side
    826,776.12x = 355,992,048,138.17
  5. Step 5: Solve for x
    x = 355,992,048,138.17/826,776.12
  6. Step 6: Final answer
    x = 430,578.53

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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.