Home / 2,275,878.76-3,140,444.91-1,257,222.76

Finding the Fourth Proportional to 2,275,878.76, 3,140,444.91 and 1,257,222.76

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Solution

The fourth proportional to 2,275,878.76, 3,140,444.91 and 1,257,222.76 is: 1,734,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275,878.76 : 3,140,444.91 = 1,257,222.76 : x
  2. Step 2: Convert to fraction form
    2,275,878.76/3,140,444.91 = 1,257,222.76/x
  3. Step 3: Cross multiply
    2,275,878.76x = 3,140,444.91 × 1,257,222.76
  4. Step 4: Simplify right side
    2,275,878.76x = 3,948,238,801,675.93
  5. Step 5: Solve for x
    x = 3,948,238,801,675.93/2,275,878.76
  6. Step 6: Final answer
    x = 1,734,819.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.