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Finding the Fourth Proportional to 894.89, 1,235.02 and 496.59

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Solution

The fourth proportional to 894.89, 1,235.02 and 496.59 is: 685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.89 : 1,235.02 = 496.59 : x
  2. Step 2: Convert to fraction form
    894.89/1,235.02 = 496.59/x
  3. Step 3: Cross multiply
    894.89x = 1,235.02 × 496.59
  4. Step 4: Simplify right side
    894.89x = 613,298.51
  5. Step 5: Solve for x
    x = 613,298.51/894.89
  6. Step 6: Final answer
    x = 685.33

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Double scale
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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.