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Finding the Fourth Proportional to 833.94, 1,150.89 and 479.87

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Solution

The fourth proportional to 833.94, 1,150.89 and 479.87 is: 662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.94 : 1,150.89 = 479.87 : x
  2. Step 2: Convert to fraction form
    833.94/1,150.89 = 479.87/x
  3. Step 3: Cross multiply
    833.94x = 1,150.89 × 479.87
  4. Step 4: Simplify right side
    833.94x = 552,274.35
  5. Step 5: Solve for x
    x = 552,274.35/833.94
  6. Step 6: Final answer
    x = 662.25

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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.