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Finding the Fourth Proportional to 893,667.56, 1,340,489.64 and 219,754.68

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Solution

The fourth proportional to 893,667.56, 1,340,489.64 and 219,754.68 is: 329,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,667.56 : 1,340,489.64 = 219,754.68 : x
  2. Step 2: Convert to fraction form
    893,667.56/1,340,489.64 = 219,754.68/x
  3. Step 3: Cross multiply
    893,667.56x = 1,340,489.64 × 219,754.68
  4. Step 4: Simplify right side
    893,667.56x = 294,578,871,881.52
  5. Step 5: Solve for x
    x = 294,578,871,881.52/893,667.56
  6. Step 6: Final answer
    x = 329,629.14

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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.