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Finding the Fourth Proportional to 636,621, 954,728.63 and 210,077.33

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Solution

The fourth proportional to 636,621, 954,728.63 and 210,077.33 is: 315,049.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,621 : 954,728.63 = 210,077.33 : x
  2. Step 2: Convert to fraction form
    636,621/954,728.63 = 210,077.33/x
  3. Step 3: Cross multiply
    636,621x = 954,728.63 × 210,077.33
  4. Step 4: Simplify right side
    636,621x = 200,566,835,640.93
  5. Step 5: Solve for x
    x = 200,566,835,640.93/636,621
  6. Step 6: Final answer
    x = 315,049.04

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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.