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Finding the Fourth Proportional to 446,538.80, 668,623.44 and 268,801.76

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Solution

The fourth proportional to 446,538.80, 668,623.44 and 268,801.76 is: 402,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,538.80 : 668,623.44 = 268,801.76 : x
  2. Step 2: Convert to fraction form
    446,538.80/668,623.44 = 268,801.76/x
  3. Step 3: Cross multiply
    446,538.80x = 668,623.44 × 268,801.76
  4. Step 4: Simplify right side
    446,538.80x = 179,727,157,449.25
  5. Step 5: Solve for x
    x = 179,727,157,449.25/446,538.80
  6. Step 6: Final answer
    x = 402,489.45

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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.