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Finding the Fourth Proportional to 401,327.11, 601,510.87 and 305,815.35

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Solution

The fourth proportional to 401,327.11, 601,510.87 and 305,815.35 is: 458,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,327.11 : 601,510.87 = 305,815.35 : x
  2. Step 2: Convert to fraction form
    401,327.11/601,510.87 = 305,815.35/x
  3. Step 3: Cross multiply
    401,327.11x = 601,510.87 × 305,815.35
  4. Step 4: Simplify right side
    401,327.11x = 183,951,257,237.86
  5. Step 5: Solve for x
    x = 183,951,257,237.86/401,327.11
  6. Step 6: Final answer
    x = 458,357.42

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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.