Home / 1,151,866.50-1,589,378.94-668,320.80

Finding the Fourth Proportional to 1,151,866.50, 1,589,378.94 and 668,320.80

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Solution

The fourth proportional to 1,151,866.50, 1,589,378.94 and 668,320.80 is: 922,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,866.50 : 1,589,378.94 = 668,320.80 : x
  2. Step 2: Convert to fraction form
    1,151,866.50/1,589,378.94 = 668,320.80/x
  3. Step 3: Cross multiply
    1,151,866.50x = 1,589,378.94 × 668,320.80
  4. Step 4: Simplify right side
    1,151,866.50x = 1,062,215,004,683.95
  5. Step 5: Solve for x
    x = 1,062,215,004,683.95/1,151,866.50
  6. Step 6: Final answer
    x = 922,168.50

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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.