Home / 445,147.57-614,584.02-309,138.04

Finding the Fourth Proportional to 445,147.57, 614,584.02 and 309,138.04

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Solution

The fourth proportional to 445,147.57, 614,584.02 and 309,138.04 is: 426,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,147.57 : 614,584.02 = 309,138.04 : x
  2. Step 2: Convert to fraction form
    445,147.57/614,584.02 = 309,138.04/x
  3. Step 3: Cross multiply
    445,147.57x = 614,584.02 × 309,138.04
  4. Step 4: Simplify right side
    445,147.57x = 189,991,299,358.12
  5. Step 5: Solve for x
    x = 189,991,299,358.12/445,147.57
  6. Step 6: Final answer
    x = 426,805.20

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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.