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Finding the Fourth Proportional to 924.08, 1,275.32 and 690.80

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Solution

The fourth proportional to 924.08, 1,275.32 and 690.80 is: 953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.08 : 1,275.32 = 690.80 : x
  2. Step 2: Convert to fraction form
    924.08/1,275.32 = 690.80/x
  3. Step 3: Cross multiply
    924.08x = 1,275.32 × 690.80
  4. Step 4: Simplify right side
    924.08x = 880,991.06
  5. Step 5: Solve for x
    x = 880,991.06/924.08
  6. Step 6: Final answer
    x = 953.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.