Home / 422,140.29-582,641.58-388,094.85

Finding the Fourth Proportional to 422,140.29, 582,641.58 and 388,094.85

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Solution

The fourth proportional to 422,140.29, 582,641.58 and 388,094.85 is: 535,651.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,140.29 : 582,641.58 = 388,094.85 : x
  2. Step 2: Convert to fraction form
    422,140.29/582,641.58 = 388,094.85/x
  3. Step 3: Cross multiply
    422,140.29x = 582,641.58 × 388,094.85
  4. Step 4: Simplify right side
    422,140.29x = 226,120,194,167.02
  5. Step 5: Solve for x
    x = 226,120,194,167.02/422,140.29
  6. Step 6: Final answer
    x = 535,651.77

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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.