Home / 889,681.28-1,334,245.92-320,988.44

Finding the Fourth Proportional to 889,681.28, 1,334,245.92 and 320,988.44

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Solution

The fourth proportional to 889,681.28, 1,334,245.92 and 320,988.44 is: 481,383.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,681.28 : 1,334,245.92 = 320,988.44 : x
  2. Step 2: Convert to fraction form
    889,681.28/1,334,245.92 = 320,988.44/x
  3. Step 3: Cross multiply
    889,681.28x = 1,334,245.92 × 320,988.44
  4. Step 4: Simplify right side
    889,681.28x = 428,277,509,765.94
  5. Step 5: Solve for x
    x = 428,277,509,765.94/889,681.28
  6. Step 6: Final answer
    x = 481,383.08

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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.