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Finding the Fourth Proportional to 833.98, 1,150.71 and 484.47

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Solution

The fourth proportional to 833.98, 1,150.71 and 484.47 is: 668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.98 : 1,150.71 = 484.47 : x
  2. Step 2: Convert to fraction form
    833.98/1,150.71 = 484.47/x
  3. Step 3: Cross multiply
    833.98x = 1,150.71 × 484.47
  4. Step 4: Simplify right side
    833.98x = 557,484.47
  5. Step 5: Solve for x
    x = 557,484.47/833.98
  6. Step 6: Final answer
    x = 668.46

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Double scale
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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.