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Finding the Fourth Proportional to 611,856.99, 844,419.60 and 370,198.89

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Solution

The fourth proportional to 611,856.99, 844,419.60 and 370,198.89 is: 510,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,856.99 : 844,419.60 = 370,198.89 : x
  2. Step 2: Convert to fraction form
    611,856.99/844,419.60 = 370,198.89/x
  3. Step 3: Cross multiply
    611,856.99x = 844,419.60 × 370,198.89
  4. Step 4: Simplify right side
    611,856.99x = 312,603,198,614.24
  5. Step 5: Solve for x
    x = 312,603,198,614.24/611,856.99
  6. Step 6: Final answer
    x = 510,908.93

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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.