Home / 309,044.90-462,984.15-288,049.70

Finding the Fourth Proportional to 309,044.90, 462,984.15 and 288,049.70

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Solution

The fourth proportional to 309,044.90, 462,984.15 and 288,049.70 is: 431,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,044.90 : 462,984.15 = 288,049.70 : x
  2. Step 2: Convert to fraction form
    309,044.90/462,984.15 = 288,049.70/x
  3. Step 3: Cross multiply
    309,044.90x = 462,984.15 × 288,049.70
  4. Step 4: Simplify right side
    309,044.90x = 133,362,445,512.26
  5. Step 5: Solve for x
    x = 133,362,445,512.26/309,044.90
  6. Step 6: Final answer
    x = 431,530.97

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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.