Home / 616,921.36-851,100.94-401,983

Finding the Fourth Proportional to 616,921.36, 851,100.94 and 401,983

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Solution

The fourth proportional to 616,921.36, 851,100.94 and 401,983 is: 554,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,921.36 : 851,100.94 = 401,983 : x
  2. Step 2: Convert to fraction form
    616,921.36/851,100.94 = 401,983/x
  3. Step 3: Cross multiply
    616,921.36x = 851,100.94 × 401,983
  4. Step 4: Simplify right side
    616,921.36x = 342,128,109,164.02
  5. Step 5: Solve for x
    x = 342,128,109,164.02/616,921.36
  6. Step 6: Final answer
    x = 554,573.29

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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.