Home / 628,061.94-941,736.11-428,623.92

Finding the Fourth Proportional to 628,061.94, 941,736.11 and 428,623.92

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Solution

The fourth proportional to 628,061.94, 941,736.11 and 428,623.92 is: 642,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,061.94 : 941,736.11 = 428,623.92 : x
  2. Step 2: Convert to fraction form
    628,061.94/941,736.11 = 428,623.92/x
  3. Step 3: Cross multiply
    628,061.94x = 941,736.11 × 428,623.92
  4. Step 4: Simplify right side
    628,061.94x = 403,650,620,930.63
  5. Step 5: Solve for x
    x = 403,650,620,930.63/628,061.94
  6. Step 6: Final answer
    x = 642,692.38

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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.