Home / 2,088,221.20-3,132,331.80-1,286,904.40

Finding the Fourth Proportional to 2,088,221.20, 3,132,331.80 and 1,286,904.40

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Solution

The fourth proportional to 2,088,221.20, 3,132,331.80 and 1,286,904.40 is: 1,930,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088,221.20 : 3,132,331.80 = 1,286,904.40 : x
  2. Step 2: Convert to fraction form
    2,088,221.20/3,132,331.80 = 1,286,904.40/x
  3. Step 3: Cross multiply
    2,088,221.20x = 3,132,331.80 × 1,286,904.40
  4. Step 4: Simplify right side
    2,088,221.20x = 4,031,011,575,679.92
  5. Step 5: Solve for x
    x = 4,031,011,575,679.92/2,088,221.20
  6. Step 6: Final answer
    x = 1,930,356.60

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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.