Home / 3,121,805.80-4,682,708.70-1,625,703.40

Finding the Fourth Proportional to 3,121,805.80, 4,682,708.70 and 1,625,703.40

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Solution

The fourth proportional to 3,121,805.80, 4,682,708.70 and 1,625,703.40 is: 2,438,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,805.80 : 4,682,708.70 = 1,625,703.40 : x
  2. Step 2: Convert to fraction form
    3,121,805.80/4,682,708.70 = 1,625,703.40/x
  3. Step 3: Cross multiply
    3,121,805.80x = 4,682,708.70 × 1,625,703.40
  4. Step 4: Simplify right side
    3,121,805.80x = 7,612,695,454,799.58
  5. Step 5: Solve for x
    x = 7,612,695,454,799.58/3,121,805.80
  6. Step 6: Final answer
    x = 2,438,555.10

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Similar ratio
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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.