Home / 2,158,138.60-3,237,729.18-810,315.88

Finding the Fourth Proportional to 2,158,138.60, 3,237,729.18 and 810,315.88

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Solution

The fourth proportional to 2,158,138.60, 3,237,729.18 and 810,315.88 is: 1,215,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,138.60 : 3,237,729.18 = 810,315.88 : x
  2. Step 2: Convert to fraction form
    2,158,138.60/3,237,729.18 = 810,315.88/x
  3. Step 3: Cross multiply
    2,158,138.60x = 3,237,729.18 × 810,315.88
  4. Step 4: Simplify right side
    2,158,138.60x = 2,623,583,369,693.38
  5. Step 5: Solve for x
    x = 2,623,583,369,693.38/2,158,138.60
  6. Step 6: Final answer
    x = 1,215,669.54

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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.