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Finding the Fourth Proportional to 926.01, 1,277.84 and 506.28

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Solution

The fourth proportional to 926.01, 1,277.84 and 506.28 is: 698.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.01 : 1,277.84 = 506.28 : x
  2. Step 2: Convert to fraction form
    926.01/1,277.84 = 506.28/x
  3. Step 3: Cross multiply
    926.01x = 1,277.84 × 506.28
  4. Step 4: Simplify right side
    926.01x = 646,944.84
  5. Step 5: Solve for x
    x = 646,944.84/926.01
  6. Step 6: Final answer
    x = 698.64

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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.