Home / 2,180,931.12-3,271,208.76-1,327,781.88

Finding the Fourth Proportional to 2,180,931.12, 3,271,208.76 and 1,327,781.88

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Solution

The fourth proportional to 2,180,931.12, 3,271,208.76 and 1,327,781.88 is: 1,991,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,931.12 : 3,271,208.76 = 1,327,781.88 : x
  2. Step 2: Convert to fraction form
    2,180,931.12/3,271,208.76 = 1,327,781.88/x
  3. Step 3: Cross multiply
    2,180,931.12x = 3,271,208.76 × 1,327,781.88
  4. Step 4: Simplify right side
    2,180,931.12x = 4,343,451,717,225.27
  5. Step 5: Solve for x
    x = 4,343,451,717,225.27/2,180,931.12
  6. Step 6: Final answer
    x = 1,991,558.41

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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.