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Finding the Fourth Proportional to 591,246, 815,919.48 and 322,974

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Solution

The fourth proportional to 591,246, 815,919.48 and 322,974 is: 445,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,246 : 815,919.48 = 322,974 : x
  2. Step 2: Convert to fraction form
    591,246/815,919.48 = 322,974/x
  3. Step 3: Cross multiply
    591,246x = 815,919.48 × 322,974
  4. Step 4: Simplify right side
    591,246x = 263,520,778,133.52
  5. Step 5: Solve for x
    x = 263,520,778,133.52/591,246
  6. Step 6: Final answer
    x = 445,704.12

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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.