Home / 654,204.42-902,844.40-378,617.80

Finding the Fourth Proportional to 654,204.42, 902,844.40 and 378,617.80

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Solution

The fourth proportional to 654,204.42, 902,844.40 and 378,617.80 is: 522,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,204.42 : 902,844.40 = 378,617.80 : x
  2. Step 2: Convert to fraction form
    654,204.42/902,844.40 = 378,617.80/x
  3. Step 3: Cross multiply
    654,204.42x = 902,844.40 × 378,617.80
  4. Step 4: Simplify right side
    654,204.42x = 341,832,960,470.32
  5. Step 5: Solve for x
    x = 341,832,960,470.32/654,204.42
  6. Step 6: Final answer
    x = 522,517.05

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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.