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Finding the Fourth Proportional to 526.39, 793.55 and 491.16

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Solution

The fourth proportional to 526.39, 793.55 and 491.16 is: 740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.39 : 793.55 = 491.16 : x
  2. Step 2: Convert to fraction form
    526.39/793.55 = 491.16/x
  3. Step 3: Cross multiply
    526.39x = 793.55 × 491.16
  4. Step 4: Simplify right side
    526.39x = 389,760.02
  5. Step 5: Solve for x
    x = 389,760.02/526.39
  6. Step 6: Final answer
    x = 740.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.