Home / 1,286,697.60-1,930,034.40-327,155.28

Finding the Fourth Proportional to 1,286,697.60, 1,930,034.40 and 327,155.28

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Solution

The fourth proportional to 1,286,697.60, 1,930,034.40 and 327,155.28 is: 490,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,697.60 : 1,930,034.40 = 327,155.28 : x
  2. Step 2: Convert to fraction form
    1,286,697.60/1,930,034.40 = 327,155.28/x
  3. Step 3: Cross multiply
    1,286,697.60x = 1,930,034.40 × 327,155.28
  4. Step 4: Simplify right side
    1,286,697.60x = 631,420,944,541.63
  5. Step 5: Solve for x
    x = 631,420,944,541.63/1,286,697.60
  6. Step 6: Final answer
    x = 490,729.87

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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.