Home / 1,065,414.87-1,470,756.56-678,760.54

Finding the Fourth Proportional to 1,065,414.87, 1,470,756.56 and 678,760.54

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Solution

The fourth proportional to 1,065,414.87, 1,470,756.56 and 678,760.54 is: 936,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,414.87 : 1,470,756.56 = 678,760.54 : x
  2. Step 2: Convert to fraction form
    1,065,414.87/1,470,756.56 = 678,760.54/x
  3. Step 3: Cross multiply
    1,065,414.87x = 1,470,756.56 × 678,760.54
  4. Step 4: Simplify right side
    1,065,414.87x = 998,291,518,076.45
  5. Step 5: Solve for x
    x = 998,291,518,076.45/1,065,414.87
  6. Step 6: Final answer
    x = 936,997.92

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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.