Home / 379,147.53-522,983.30-288,304.34

Finding the Fourth Proportional to 379,147.53, 522,983.30 and 288,304.34

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Solution

The fourth proportional to 379,147.53, 522,983.30 and 288,304.34 is: 397,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,147.53 : 522,983.30 = 288,304.34 : x
  2. Step 2: Convert to fraction form
    379,147.53/522,983.30 = 288,304.34/x
  3. Step 3: Cross multiply
    379,147.53x = 522,983.30 × 288,304.34
  4. Step 4: Simplify right side
    379,147.53x = 150,778,351,081.08
  5. Step 5: Solve for x
    x = 150,778,351,081.08/379,147.53
  6. Step 6: Final answer
    x = 397,677.26

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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.