Home / 859,286.34-1,288,578.36-372,999.60

Finding the Fourth Proportional to 859,286.34, 1,288,578.36 and 372,999.60

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Solution

The fourth proportional to 859,286.34, 1,288,578.36 and 372,999.60 is: 559,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,286.34 : 1,288,578.36 = 372,999.60 : x
  2. Step 2: Convert to fraction form
    859,286.34/1,288,578.36 = 372,999.60/x
  3. Step 3: Cross multiply
    859,286.34x = 1,288,578.36 × 372,999.60
  4. Step 4: Simplify right side
    859,286.34x = 480,639,212,848.66
  5. Step 5: Solve for x
    x = 480,639,212,848.66/859,286.34
  6. Step 6: Final answer
    x = 559,346.97

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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.