Home / 889.03-1,226.85-496.05

Finding the Fourth Proportional to 889.03, 1,226.85 and 496.05

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Solution

The fourth proportional to 889.03, 1,226.85 and 496.05 is: 684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.03 : 1,226.85 = 496.05 : x
  2. Step 2: Convert to fraction form
    889.03/1,226.85 = 496.05/x
  3. Step 3: Cross multiply
    889.03x = 1,226.85 × 496.05
  4. Step 4: Simplify right side
    889.03x = 608,578.94
  5. Step 5: Solve for x
    x = 608,578.94/889.03
  6. Step 6: Final answer
    x = 684.54

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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.