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Finding the Fourth Proportional to 401,278.89, 601,919.47 and 101,759.67

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Solution

The fourth proportional to 401,278.89, 601,919.47 and 101,759.67 is: 152,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,278.89 : 601,919.47 = 101,759.67 : x
  2. Step 2: Convert to fraction form
    401,278.89/601,919.47 = 101,759.67/x
  3. Step 3: Cross multiply
    401,278.89x = 601,919.47 × 101,759.67
  4. Step 4: Simplify right side
    401,278.89x = 61,251,126,633.77
  5. Step 5: Solve for x
    x = 61,251,126,633.77/401,278.89
  6. Step 6: Final answer
    x = 152,639.79

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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.