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Finding the Fourth Proportional to 448,695, 619,199.10 and 247,491

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Solution

The fourth proportional to 448,695, 619,199.10 and 247,491 is: 341,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,695 : 619,199.10 = 247,491 : x
  2. Step 2: Convert to fraction form
    448,695/619,199.10 = 247,491/x
  3. Step 3: Cross multiply
    448,695x = 619,199.10 × 247,491
  4. Step 4: Simplify right side
    448,695x = 153,246,204,458.10
  5. Step 5: Solve for x
    x = 153,246,204,458.10/448,695
  6. Step 6: Final answer
    x = 341,537.58

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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.