Home / 2,191,148.20-3,286,722.30-772,805.80

Finding the Fourth Proportional to 2,191,148.20, 3,286,722.30 and 772,805.80

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Solution

The fourth proportional to 2,191,148.20, 3,286,722.30 and 772,805.80 is: 1,159,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,148.20 : 3,286,722.30 = 772,805.80 : x
  2. Step 2: Convert to fraction form
    2,191,148.20/3,286,722.30 = 772,805.80/x
  3. Step 3: Cross multiply
    2,191,148.20x = 3,286,722.30 × 772,805.80
  4. Step 4: Simplify right side
    2,191,148.20x = 2,539,998,056,429.34
  5. Step 5: Solve for x
    x = 2,539,998,056,429.34/2,191,148.20
  6. Step 6: Final answer
    x = 1,159,208.70

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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.