Home / 681,047.24-939,887.64-375,123.56

Finding the Fourth Proportional to 681,047.24, 939,887.64 and 375,123.56

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Solution

The fourth proportional to 681,047.24, 939,887.64 and 375,123.56 is: 517,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,047.24 : 939,887.64 = 375,123.56 : x
  2. Step 2: Convert to fraction form
    681,047.24/939,887.64 = 375,123.56/x
  3. Step 3: Cross multiply
    681,047.24x = 939,887.64 × 375,123.56
  4. Step 4: Simplify right side
    681,047.24x = 352,573,997,516.80
  5. Step 5: Solve for x
    x = 352,573,997,516.80/681,047.24
  6. Step 6: Final answer
    x = 517,693.89

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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.