Home / 1,146,628.20-1,719,942.30-726,378.60

Finding the Fourth Proportional to 1,146,628.20, 1,719,942.30 and 726,378.60

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Solution

The fourth proportional to 1,146,628.20, 1,719,942.30 and 726,378.60 is: 1,089,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,628.20 : 1,719,942.30 = 726,378.60 : x
  2. Step 2: Convert to fraction form
    1,146,628.20/1,719,942.30 = 726,378.60/x
  3. Step 3: Cross multiply
    1,146,628.20x = 1,719,942.30 × 726,378.60
  4. Step 4: Simplify right side
    1,146,628.20x = 1,249,329,279,954.78
  5. Step 5: Solve for x
    x = 1,249,329,279,954.78/1,146,628.20
  6. Step 6: Final answer
    x = 1,089,567.90

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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.