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Finding the Fourth Proportional to 526.77, 727.26 and 468.39

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Solution

The fourth proportional to 526.77, 727.26 and 468.39 is: 646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.77 : 727.26 = 468.39 : x
  2. Step 2: Convert to fraction form
    526.77/727.26 = 468.39/x
  3. Step 3: Cross multiply
    526.77x = 727.26 × 468.39
  4. Step 4: Simplify right side
    526.77x = 340,640.14
  5. Step 5: Solve for x
    x = 340,640.14/526.77
  6. Step 6: Final answer
    x = 646.66

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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.