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Finding the Fourth Proportional to 833.49, 1,151.21 and 585.63

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Solution

The fourth proportional to 833.49, 1,151.21 and 585.63 is: 808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.49 : 1,151.21 = 585.63 : x
  2. Step 2: Convert to fraction form
    833.49/1,151.21 = 585.63/x
  3. Step 3: Cross multiply
    833.49x = 1,151.21 × 585.63
  4. Step 4: Simplify right side
    833.49x = 674,184.58
  5. Step 5: Solve for x
    x = 674,184.58/833.49
  6. Step 6: Final answer
    x = 808.87

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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.