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Finding the Fourth Proportional to 1,812.60, 2,718.90 and 496.35

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Solution

The fourth proportional to 1,812.60, 2,718.90 and 496.35 is: 744.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.60 : 2,718.90 = 496.35 : x
  2. Step 2: Convert to fraction form
    1,812.60/2,718.90 = 496.35/x
  3. Step 3: Cross multiply
    1,812.60x = 2,718.90 × 496.35
  4. Step 4: Simplify right side
    1,812.60x = 1,349,526.02
  5. Step 5: Solve for x
    x = 1,349,526.02/1,812.60
  6. Step 6: Final answer
    x = 744.53

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.