Home / 787,678.50-1,086,996.33-429,982.50

Finding the Fourth Proportional to 787,678.50, 1,086,996.33 and 429,982.50

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Solution

The fourth proportional to 787,678.50, 1,086,996.33 and 429,982.50 is: 593,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,678.50 : 1,086,996.33 = 429,982.50 : x
  2. Step 2: Convert to fraction form
    787,678.50/1,086,996.33 = 429,982.50/x
  3. Step 3: Cross multiply
    787,678.50x = 1,086,996.33 × 429,982.50
  4. Step 4: Simplify right side
    787,678.50x = 467,389,399,464.23
  5. Step 5: Solve for x
    x = 467,389,399,464.23/787,678.50
  6. Step 6: Final answer
    x = 593,375.85

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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.