Home / 611,537.42-844,321.32-397,288.10

Finding the Fourth Proportional to 611,537.42, 844,321.32 and 397,288.10

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Solution

The fourth proportional to 611,537.42, 844,321.32 and 397,288.10 is: 548,517.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,537.42 : 844,321.32 = 397,288.10 : x
  2. Step 2: Convert to fraction form
    611,537.42/844,321.32 = 397,288.10/x
  3. Step 3: Cross multiply
    611,537.42x = 844,321.32 × 397,288.10
  4. Step 4: Simplify right side
    611,537.42x = 335,438,813,012.29
  5. Step 5: Solve for x
    x = 335,438,813,012.29/611,537.42
  6. Step 6: Final answer
    x = 548,517.23

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1.5x scale

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.