Home / 643,454.28-965,192.76-222,743.52

Finding the Fourth Proportional to 643,454.28, 965,192.76 and 222,743.52

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Solution

The fourth proportional to 643,454.28, 965,192.76 and 222,743.52 is: 334,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,454.28 : 965,192.76 = 222,743.52 : x
  2. Step 2: Convert to fraction form
    643,454.28/965,192.76 = 222,743.52/x
  3. Step 3: Cross multiply
    643,454.28x = 965,192.76 × 222,743.52
  4. Step 4: Simplify right side
    643,454.28x = 214,990,432,840.92
  5. Step 5: Solve for x
    x = 214,990,432,840.92/643,454.28
  6. Step 6: Final answer
    x = 334,119.21

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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.