Home / 509,087.02-702,517.37-305,250.42

Finding the Fourth Proportional to 509,087.02, 702,517.37 and 305,250.42

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Solution

The fourth proportional to 509,087.02, 702,517.37 and 305,250.42 is: 421,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,087.02 : 702,517.37 = 305,250.42 : x
  2. Step 2: Convert to fraction form
    509,087.02/702,517.37 = 305,250.42/x
  3. Step 3: Cross multiply
    509,087.02x = 702,517.37 × 305,250.42
  4. Step 4: Simplify right side
    509,087.02x = 214,443,723,012.92
  5. Step 5: Solve for x
    x = 214,443,723,012.92/509,087.02
  6. Step 6: Final answer
    x = 421,231.96

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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.