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Finding the Fourth Proportional to 448,908, 619,506 and 247,716.96

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Solution

The fourth proportional to 448,908, 619,506 and 247,716.96 is: 341,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,908 : 619,506 = 247,716.96 : x
  2. Step 2: Convert to fraction form
    448,908/619,506 = 247,716.96/x
  3. Step 3: Cross multiply
    448,908x = 619,506 × 247,716.96
  4. Step 4: Simplify right side
    448,908x = 153,462,143,021.76
  5. Step 5: Solve for x
    x = 153,462,143,021.76/448,908
  6. Step 6: Final answer
    x = 341,856.56

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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.