Home / 507,128.07-699,883.70-280,773.57

Finding the Fourth Proportional to 507,128.07, 699,883.70 and 280,773.57

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Solution

The fourth proportional to 507,128.07, 699,883.70 and 280,773.57 is: 387,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,128.07 : 699,883.70 = 280,773.57 : x
  2. Step 2: Convert to fraction form
    507,128.07/699,883.70 = 280,773.57/x
  3. Step 3: Cross multiply
    507,128.07x = 699,883.70 × 280,773.57
  4. Step 4: Simplify right side
    507,128.07x = 196,508,843,629.94
  5. Step 5: Solve for x
    x = 196,508,843,629.94/507,128.07
  6. Step 6: Final answer
    x = 387,493.53

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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.