Home / 657,840.36-907,819.68-356,034.36

Finding the Fourth Proportional to 657,840.36, 907,819.68 and 356,034.36

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Solution

The fourth proportional to 657,840.36, 907,819.68 and 356,034.36 is: 491,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,840.36 : 907,819.68 = 356,034.36 : x
  2. Step 2: Convert to fraction form
    657,840.36/907,819.68 = 356,034.36/x
  3. Step 3: Cross multiply
    657,840.36x = 907,819.68 × 356,034.36
  4. Step 4: Simplify right side
    657,840.36x = 323,214,998,764.21
  5. Step 5: Solve for x
    x = 323,214,998,764.21/657,840.36
  6. Step 6: Final answer
    x = 491,327.41

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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.