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Finding the Fourth Proportional to 1,216.07, 1,824.15 and 475.65

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Solution

The fourth proportional to 1,216.07, 1,824.15 and 475.65 is: 713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.07 : 1,824.15 = 475.65 : x
  2. Step 2: Convert to fraction form
    1,216.07/1,824.15 = 475.65/x
  3. Step 3: Cross multiply
    1,216.07x = 1,824.15 × 475.65
  4. Step 4: Simplify right side
    1,216.07x = 867,662.00
  5. Step 5: Solve for x
    x = 867,662.00/1,216.07
  6. Step 6: Final answer
    x = 713.50

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1.5x scale

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.