Home / 422,814.06-583,571.25-388,768.50

Finding the Fourth Proportional to 422,814.06, 583,571.25 and 388,768.50

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Solution

The fourth proportional to 422,814.06, 583,571.25 and 388,768.50 is: 536,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,814.06 : 583,571.25 = 388,768.50 : x
  2. Step 2: Convert to fraction form
    422,814.06/583,571.25 = 388,768.50/x
  3. Step 3: Cross multiply
    422,814.06x = 583,571.25 × 388,768.50
  4. Step 4: Simplify right side
    422,814.06x = 226,874,119,505.63
  5. Step 5: Solve for x
    x = 226,874,119,505.63/422,814.06
  6. Step 6: Final answer
    x = 536,581.30

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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.