Home / 507,146.06-699,861.60-280,791.56

Finding the Fourth Proportional to 507,146.06, 699,861.60 and 280,791.56

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Solution

The fourth proportional to 507,146.06, 699,861.60 and 280,791.56 is: 387,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,146.06 : 699,861.60 = 280,791.56 : x
  2. Step 2: Convert to fraction form
    507,146.06/699,861.60 = 280,791.56/x
  3. Step 3: Cross multiply
    507,146.06x = 699,861.60 × 280,791.56
  4. Step 4: Simplify right side
    507,146.06x = 196,515,232,197.75
  5. Step 5: Solve for x
    x = 196,515,232,197.75/507,146.06
  6. Step 6: Final answer
    x = 387,492.37

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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.