Home / 657,788.32-907,747.89-355,982.32

Finding the Fourth Proportional to 657,788.32, 907,747.89 and 355,982.32

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Solution

The fourth proportional to 657,788.32, 907,747.89 and 355,982.32 is: 491,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,788.32 : 907,747.89 = 355,982.32 : x
  2. Step 2: Convert to fraction form
    657,788.32/907,747.89 = 355,982.32/x
  3. Step 3: Cross multiply
    657,788.32x = 907,747.89 × 355,982.32
  4. Step 4: Simplify right side
    657,788.32x = 323,142,199,857.31
  5. Step 5: Solve for x
    x = 323,142,199,857.31/657,788.32
  6. Step 6: Final answer
    x = 491,255.61

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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.