Home / 422,224.02-631,839.96-372,401.46

Finding the Fourth Proportional to 422,224.02, 631,839.96 and 372,401.46

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Solution

The fourth proportional to 422,224.02, 631,839.96 and 372,401.46 is: 557,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,224.02 : 631,839.96 = 372,401.46 : x
  2. Step 2: Convert to fraction form
    422,224.02/631,839.96 = 372,401.46/x
  3. Step 3: Cross multiply
    422,224.02x = 631,839.96 × 372,401.46
  4. Step 4: Simplify right side
    422,224.02x = 235,298,123,590.34
  5. Step 5: Solve for x
    x = 235,298,123,590.34/422,224.02
  6. Step 6: Final answer
    x = 557,282.66

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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.