Home / 691,230.70-1,036,991.85-291,665.80

Finding the Fourth Proportional to 691,230.70, 1,036,991.85 and 291,665.80

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Solution

The fourth proportional to 691,230.70, 1,036,991.85 and 291,665.80 is: 437,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,230.70 : 1,036,991.85 = 291,665.80 : x
  2. Step 2: Convert to fraction form
    691,230.70/1,036,991.85 = 291,665.80/x
  3. Step 3: Cross multiply
    691,230.70x = 1,036,991.85 × 291,665.80
  4. Step 4: Simplify right side
    691,230.70x = 302,455,057,523.73
  5. Step 5: Solve for x
    x = 302,455,057,523.73/691,230.70
  6. Step 6: Final answer
    x = 437,560.22

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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.