Home / 1,030,046.40-1,546,819.20-764,107.20

Finding the Fourth Proportional to 1,030,046.40, 1,546,819.20 and 764,107.20

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Solution

The fourth proportional to 1,030,046.40, 1,546,819.20 and 764,107.20 is: 1,147,458.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,046.40 : 1,546,819.20 = 764,107.20 : x
  2. Step 2: Convert to fraction form
    1,030,046.40/1,546,819.20 = 764,107.20/x
  3. Step 3: Cross multiply
    1,030,046.40x = 1,546,819.20 × 764,107.20
  4. Step 4: Simplify right side
    1,030,046.40x = 1,181,935,687,818.24
  5. Step 5: Solve for x
    x = 1,181,935,687,818.24/1,030,046.40
  6. Step 6: Final answer
    x = 1,147,458.69

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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.