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Finding the Fourth Proportional to 1,473.45, 2,210.37 and 485.94

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Solution

The fourth proportional to 1,473.45, 2,210.37 and 485.94 is: 728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.45 : 2,210.37 = 485.94 : x
  2. Step 2: Convert to fraction form
    1,473.45/2,210.37 = 485.94/x
  3. Step 3: Cross multiply
    1,473.45x = 2,210.37 × 485.94
  4. Step 4: Simplify right side
    1,473.45x = 1,074,107.20
  5. Step 5: Solve for x
    x = 1,074,107.20/1,473.45
  6. Step 6: Final answer
    x = 728.97

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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.