Home / 1,190,819.28-1,786,287.28-480,758.72

Finding the Fourth Proportional to 1,190,819.28, 1,786,287.28 and 480,758.72

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Solution

The fourth proportional to 1,190,819.28, 1,786,287.28 and 480,758.72 is: 721,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,819.28 : 1,786,287.28 = 480,758.72 : x
  2. Step 2: Convert to fraction form
    1,190,819.28/1,786,287.28 = 480,758.72/x
  3. Step 3: Cross multiply
    1,190,819.28x = 1,786,287.28 × 480,758.72
  4. Step 4: Simplify right side
    1,190,819.28x = 858,773,186,285.08
  5. Step 5: Solve for x
    x = 858,773,186,285.08/1,190,819.28
  6. Step 6: Final answer
    x = 721,161.64

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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.