Home / 690,821.82-1,036,372.41-291,463.56

Finding the Fourth Proportional to 690,821.82, 1,036,372.41 and 291,463.56

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Solution

The fourth proportional to 690,821.82, 1,036,372.41 and 291,463.56 is: 437,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,821.82 : 1,036,372.41 = 291,463.56 : x
  2. Step 2: Convert to fraction form
    690,821.82/1,036,372.41 = 291,463.56/x
  3. Step 3: Cross multiply
    690,821.82x = 1,036,372.41 × 291,463.56
  4. Step 4: Simplify right side
    690,821.82x = 302,064,792,104.38
  5. Step 5: Solve for x
    x = 302,064,792,104.38/690,821.82
  6. Step 6: Final answer
    x = 437,254.27

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1.5x scale

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.