Home / 1,149,429.20-1,585,969.61-665,964.90

Finding the Fourth Proportional to 1,149,429.20, 1,585,969.61 and 665,964.90

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Solution

The fourth proportional to 1,149,429.20, 1,585,969.61 and 665,964.90 is: 918,890.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,429.20 : 1,585,969.61 = 665,964.90 : x
  2. Step 2: Convert to fraction form
    1,149,429.20/1,585,969.61 = 665,964.90/x
  3. Step 3: Cross multiply
    1,149,429.20x = 1,585,969.61 × 665,964.90
  4. Step 4: Simplify right side
    1,149,429.20x = 1,056,200,089,396.86
  5. Step 5: Solve for x
    x = 1,056,200,089,396.86/1,149,429.20
  6. Step 6: Final answer
    x = 918,890.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.