Home / 3,121,811.80-4,682,717.70-1,625,709.40

Finding the Fourth Proportional to 3,121,811.80, 4,682,717.70 and 1,625,709.40

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Solution

The fourth proportional to 3,121,811.80, 4,682,717.70 and 1,625,709.40 is: 2,438,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,811.80 : 4,682,717.70 = 1,625,709.40 : x
  2. Step 2: Convert to fraction form
    3,121,811.80/4,682,717.70 = 1,625,709.40/x
  3. Step 3: Cross multiply
    3,121,811.80x = 4,682,717.70 × 1,625,709.40
  4. Step 4: Simplify right side
    3,121,811.80x = 7,612,738,182,436.38
  5. Step 5: Solve for x
    x = 7,612,738,182,436.38/3,121,811.80
  6. Step 6: Final answer
    x = 2,438,564.10

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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.