Home / 378,203.40-566,721.90-328,048.20

Finding the Fourth Proportional to 378,203.40, 566,721.90 and 328,048.20

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Solution

The fourth proportional to 378,203.40, 566,721.90 and 328,048.20 is: 491,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,203.40 : 566,721.90 = 328,048.20 : x
  2. Step 2: Convert to fraction form
    378,203.40/566,721.90 = 328,048.20/x
  3. Step 3: Cross multiply
    378,203.40x = 566,721.90 × 328,048.20
  4. Step 4: Simplify right side
    378,203.40x = 185,912,099,195.58
  5. Step 5: Solve for x
    x = 185,912,099,195.58/378,203.40
  6. Step 6: Final answer
    x = 491,566.44

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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.