Home / 664,487.10-996,828.45-215,058.60

Finding the Fourth Proportional to 664,487.10, 996,828.45 and 215,058.60

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Solution

The fourth proportional to 664,487.10, 996,828.45 and 215,058.60 is: 322,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,487.10 : 996,828.45 = 215,058.60 : x
  2. Step 2: Convert to fraction form
    664,487.10/996,828.45 = 215,058.60/x
  3. Step 3: Cross multiply
    664,487.10x = 996,828.45 × 215,058.60
  4. Step 4: Simplify right side
    664,487.10x = 214,376,530,897.17
  5. Step 5: Solve for x
    x = 214,376,530,897.17/664,487.10
  6. Step 6: Final answer
    x = 322,619.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.