Home / 889,670.20-1,334,229.28-320,977.38

Finding the Fourth Proportional to 889,670.20, 1,334,229.28 and 320,977.38

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Solution

The fourth proportional to 889,670.20, 1,334,229.28 and 320,977.38 is: 481,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,670.20 : 1,334,229.28 = 320,977.38 : x
  2. Step 2: Convert to fraction form
    889,670.20/1,334,229.28 = 320,977.38/x
  3. Step 3: Cross multiply
    889,670.20x = 1,334,229.28 × 320,977.38
  4. Step 4: Simplify right side
    889,670.20x = 428,257,418,613.69
  5. Step 5: Solve for x
    x = 428,257,418,613.69/889,670.20
  6. Step 6: Final answer
    x = 481,366.49

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1.5x scale

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.