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Finding the Fourth Proportional to 833.13, 1,149.66 and 483.75

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Solution

The fourth proportional to 833.13, 1,149.66 and 483.75 is: 667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.13 : 1,149.66 = 483.75 : x
  2. Step 2: Convert to fraction form
    833.13/1,149.66 = 483.75/x
  3. Step 3: Cross multiply
    833.13x = 1,149.66 × 483.75
  4. Step 4: Simplify right side
    833.13x = 556,148.03
  5. Step 5: Solve for x
    x = 556,148.03/833.13
  6. Step 6: Final answer
    x = 667.54

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Half scale
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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.