Home / 823,314.78-1,235,363.40-291,086.46

Finding the Fourth Proportional to 823,314.78, 1,235,363.40 and 291,086.46

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Solution

The fourth proportional to 823,314.78, 1,235,363.40 and 291,086.46 is: 436,768.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,314.78 : 1,235,363.40 = 291,086.46 : x
  2. Step 2: Convert to fraction form
    823,314.78/1,235,363.40 = 291,086.46/x
  3. Step 3: Cross multiply
    823,314.78x = 1,235,363.40 × 291,086.46
  4. Step 4: Simplify right side
    823,314.78x = 359,597,558,919.56
  5. Step 5: Solve for x
    x = 359,597,558,919.56/823,314.78
  6. Step 6: Final answer
    x = 436,768.01

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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.