Home / 721,571.42-1,082,364.39-322,232.42

Finding the Fourth Proportional to 721,571.42, 1,082,364.39 and 322,232.42

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Solution

The fourth proportional to 721,571.42, 1,082,364.39 and 322,232.42 is: 483,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,571.42 : 1,082,364.39 = 322,232.42 : x
  2. Step 2: Convert to fraction form
    721,571.42/1,082,364.39 = 322,232.42/x
  3. Step 3: Cross multiply
    721,571.42x = 1,082,364.39 × 322,232.42
  4. Step 4: Simplify right side
    721,571.42x = 348,772,896,711.52
  5. Step 5: Solve for x
    x = 348,772,896,711.52/721,571.42
  6. Step 6: Final answer
    x = 483,351.87

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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.