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Finding the Fourth Proportional to 448,796.22, 619,398.86 and 285,468.63

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Solution

The fourth proportional to 448,796.22, 619,398.86 and 285,468.63 is: 393,984.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,796.22 : 619,398.86 = 285,468.63 : x
  2. Step 2: Convert to fraction form
    448,796.22/619,398.86 = 285,468.63/x
  3. Step 3: Cross multiply
    448,796.22x = 619,398.86 × 285,468.63
  4. Step 4: Simplify right side
    448,796.22x = 176,818,942,560.42
  5. Step 5: Solve for x
    x = 176,818,942,560.42/448,796.22
  6. Step 6: Final answer
    x = 393,984.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.