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Finding the Fourth Proportional to 758.27, 1,045.34 and 536.83

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Solution

The fourth proportional to 758.27, 1,045.34 and 536.83 is: 740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.27 : 1,045.34 = 536.83 : x
  2. Step 2: Convert to fraction form
    758.27/1,045.34 = 536.83/x
  3. Step 3: Cross multiply
    758.27x = 1,045.34 × 536.83
  4. Step 4: Simplify right side
    758.27x = 561,169.87
  5. Step 5: Solve for x
    x = 561,169.87/758.27
  6. Step 6: Final answer
    x = 740.07

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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.