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Finding the Fourth Proportional to 833.89, 1,150.59 and 484.39

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Solution

The fourth proportional to 833.89, 1,150.59 and 484.39 is: 668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.89 : 1,150.59 = 484.39 : x
  2. Step 2: Convert to fraction form
    833.89/1,150.59 = 484.39/x
  3. Step 3: Cross multiply
    833.89x = 1,150.59 × 484.39
  4. Step 4: Simplify right side
    833.89x = 557,334.29
  5. Step 5: Solve for x
    x = 557,334.29/833.89
  6. Step 6: Final answer
    x = 668.35

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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.