Home / 890,986.56-1,229,617.44-488,578.56

Finding the Fourth Proportional to 890,986.56, 1,229,617.44 and 488,578.56

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Solution

The fourth proportional to 890,986.56, 1,229,617.44 and 488,578.56 is: 674,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,986.56 : 1,229,617.44 = 488,578.56 : x
  2. Step 2: Convert to fraction form
    890,986.56/1,229,617.44 = 488,578.56/x
  3. Step 3: Cross multiply
    890,986.56x = 1,229,617.44 × 488,578.56
  4. Step 4: Simplify right side
    890,986.56x = 600,764,718,186.09
  5. Step 5: Solve for x
    x = 600,764,718,186.09/890,986.56
  6. Step 6: Final answer
    x = 674,269.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.