Home / 1,240,960.43-1,861,218.90-330,147.83

Finding the Fourth Proportional to 1,240,960.43, 1,861,218.90 and 330,147.83

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Solution

The fourth proportional to 1,240,960.43, 1,861,218.90 and 330,147.83 is: 495,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,960.43 : 1,861,218.90 = 330,147.83 : x
  2. Step 2: Convert to fraction form
    1,240,960.43/1,861,218.90 = 330,147.83/x
  3. Step 3: Cross multiply
    1,240,960.43x = 1,861,218.90 × 330,147.83
  4. Step 4: Simplify right side
    1,240,960.43x = 614,477,371,683.89
  5. Step 5: Solve for x
    x = 614,477,371,683.89/1,240,960.43
  6. Step 6: Final answer
    x = 495,162.75

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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.