Home / 507,165.03-699,887.79-280,810.53

Finding the Fourth Proportional to 507,165.03, 699,887.79 and 280,810.53

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Solution

The fourth proportional to 507,165.03, 699,887.79 and 280,810.53 is: 387,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,165.03 : 699,887.79 = 280,810.53 : x
  2. Step 2: Convert to fraction form
    507,165.03/699,887.79 = 280,810.53/x
  3. Step 3: Cross multiply
    507,165.03x = 699,887.79 × 280,810.53
  4. Step 4: Simplify right side
    507,165.03x = 196,535,861,250.43
  5. Step 5: Solve for x
    x = 196,535,861,250.43/507,165.03
  6. Step 6: Final answer
    x = 387,518.56

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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.