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Finding the Fourth Proportional to 1,523.05, 2,284.80 and 483.15

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Solution

The fourth proportional to 1,523.05, 2,284.80 and 483.15 is: 724.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.05 : 2,284.80 = 483.15 : x
  2. Step 2: Convert to fraction form
    1,523.05/2,284.80 = 483.15/x
  3. Step 3: Cross multiply
    1,523.05x = 2,284.80 × 483.15
  4. Step 4: Simplify right side
    1,523.05x = 1,103,901.12
  5. Step 5: Solve for x
    x = 1,103,901.12/1,523.05
  6. Step 6: Final answer
    x = 724.80

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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.