Home / 690,428.18-952,789.96-404,003.48

Finding the Fourth Proportional to 690,428.18, 952,789.96 and 404,003.48

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Solution

The fourth proportional to 690,428.18, 952,789.96 and 404,003.48 is: 557,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,428.18 : 952,789.96 = 404,003.48 : x
  2. Step 2: Convert to fraction form
    690,428.18/952,789.96 = 404,003.48/x
  3. Step 3: Cross multiply
    690,428.18x = 952,789.96 × 404,003.48
  4. Step 4: Simplify right side
    690,428.18x = 384,930,459,549.06
  5. Step 5: Solve for x
    x = 384,930,459,549.06/690,428.18
  6. Step 6: Final answer
    x = 557,524.26

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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.