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Finding the Fourth Proportional to 922.98, 1,273.43 and 524.61

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Solution

The fourth proportional to 922.98, 1,273.43 and 524.61 is: 723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.98 : 1,273.43 = 524.61 : x
  2. Step 2: Convert to fraction form
    922.98/1,273.43 = 524.61/x
  3. Step 3: Cross multiply
    922.98x = 1,273.43 × 524.61
  4. Step 4: Simplify right side
    922.98x = 668,054.11
  5. Step 5: Solve for x
    x = 668,054.11/922.98
  6. Step 6: Final answer
    x = 723.80

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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.