Home / 1,189.15-1,784.36-496.29

Finding the Fourth Proportional to 1,189.15, 1,784.36 and 496.29

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Solution

The fourth proportional to 1,189.15, 1,784.36 and 496.29 is: 744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189.15 : 1,784.36 = 496.29 : x
  2. Step 2: Convert to fraction form
    1,189.15/1,784.36 = 496.29/x
  3. Step 3: Cross multiply
    1,189.15x = 1,784.36 × 496.29
  4. Step 4: Simplify right side
    1,189.15x = 885,560.02
  5. Step 5: Solve for x
    x = 885,560.02/1,189.15
  6. Step 6: Final answer
    x = 744.70

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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.