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Finding the Fourth Proportional to 760.20, 1,049.84 and 573.38

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Solution

The fourth proportional to 760.20, 1,049.84 and 573.38 is: 791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.20 : 1,049.84 = 573.38 : x
  2. Step 2: Convert to fraction form
    760.20/1,049.84 = 573.38/x
  3. Step 3: Cross multiply
    760.20x = 1,049.84 × 573.38
  4. Step 4: Simplify right side
    760.20x = 601,957.26
  5. Step 5: Solve for x
    x = 601,957.26/760.20
  6. Step 6: Final answer
    x = 791.84

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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.