Home / 830,177.76-1,245,770.64-331,500

Finding the Fourth Proportional to 830,177.76, 1,245,770.64 and 331,500

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Solution

The fourth proportional to 830,177.76, 1,245,770.64 and 331,500 is: 497,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,177.76 : 1,245,770.64 = 331,500 : x
  2. Step 2: Convert to fraction form
    830,177.76/1,245,770.64 = 331,500/x
  3. Step 3: Cross multiply
    830,177.76x = 1,245,770.64 × 331,500
  4. Step 4: Simplify right side
    830,177.76x = 412,972,967,160.00
  5. Step 5: Solve for x
    x = 412,972,967,160.00/830,177.76
  6. Step 6: Final answer
    x = 497,451.25

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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.