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Finding the Fourth Proportional to 1,484.60, 2,227.20 and 497.30

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Solution

The fourth proportional to 1,484.60, 2,227.20 and 497.30 is: 746.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.60 : 2,227.20 = 497.30 : x
  2. Step 2: Convert to fraction form
    1,484.60/2,227.20 = 497.30/x
  3. Step 3: Cross multiply
    1,484.60x = 2,227.20 × 497.30
  4. Step 4: Simplify right side
    1,484.60x = 1,107,586.56
  5. Step 5: Solve for x
    x = 1,107,586.56/1,484.60
  6. Step 6: Final answer
    x = 746.05

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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.