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Finding the Fourth Proportional to 922.57, 1,273.14 and 508.57

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Solution

The fourth proportional to 922.57, 1,273.14 and 508.57 is: 701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.57 : 1,273.14 = 508.57 : x
  2. Step 2: Convert to fraction form
    922.57/1,273.14 = 508.57/x
  3. Step 3: Cross multiply
    922.57x = 1,273.14 × 508.57
  4. Step 4: Simplify right side
    922.57x = 647,480.81
  5. Step 5: Solve for x
    x = 647,480.81/922.57
  6. Step 6: Final answer
    x = 701.82

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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.