Home / 628,122.33-941,825.48-428,684.13

Finding the Fourth Proportional to 628,122.33, 941,825.48 and 428,684.13

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Solution

The fourth proportional to 628,122.33, 941,825.48 and 428,684.13 is: 642,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,122.33 : 941,825.48 = 428,684.13 : x
  2. Step 2: Convert to fraction form
    628,122.33/941,825.48 = 428,684.13/x
  3. Step 3: Cross multiply
    628,122.33x = 941,825.48 × 428,684.13
  4. Step 4: Simplify right side
    628,122.33x = 403,745,634,362.21
  5. Step 5: Solve for x
    x = 403,745,634,362.21/628,122.33
  6. Step 6: Final answer
    x = 642,781.85

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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.