Home / 1,286,390.76-1,929,191.22-889,581.48

Finding the Fourth Proportional to 1,286,390.76, 1,929,191.22 and 889,581.48

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Solution

The fourth proportional to 1,286,390.76, 1,929,191.22 and 889,581.48 is: 1,334,099.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,390.76 : 1,929,191.22 = 889,581.48 : x
  2. Step 2: Convert to fraction form
    1,286,390.76/1,929,191.22 = 889,581.48/x
  3. Step 3: Cross multiply
    1,286,390.76x = 1,929,191.22 × 889,581.48
  4. Step 4: Simplify right side
    1,286,390.76x = 1,716,172,780,690.61
  5. Step 5: Solve for x
    x = 1,716,172,780,690.61/1,286,390.76
  6. Step 6: Final answer
    x = 1,334,099.12

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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.