Home / 787,967.70-1,180,201.95-647,999.70

Finding the Fourth Proportional to 787,967.70, 1,180,201.95 and 647,999.70

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Solution

The fourth proportional to 787,967.70, 1,180,201.95 and 647,999.70 is: 970,560.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,967.70 : 1,180,201.95 = 647,999.70 : x
  2. Step 2: Convert to fraction form
    787,967.70/1,180,201.95 = 647,999.70/x
  3. Step 3: Cross multiply
    787,967.70x = 1,180,201.95 × 647,999.70
  4. Step 4: Simplify right side
    787,967.70x = 764,770,509,539.42
  5. Step 5: Solve for x
    x = 764,770,509,539.42/787,967.70
  6. Step 6: Final answer
    x = 970,560.73

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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.