Home / 1,689,131.28-2,331,039.06-963,964.56

Finding the Fourth Proportional to 1,689,131.28, 2,331,039.06 and 963,964.56

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Solution

The fourth proportional to 1,689,131.28, 2,331,039.06 and 963,964.56 is: 1,330,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,131.28 : 2,331,039.06 = 963,964.56 : x
  2. Step 2: Convert to fraction form
    1,689,131.28/2,331,039.06 = 963,964.56/x
  3. Step 3: Cross multiply
    1,689,131.28x = 2,331,039.06 × 963,964.56
  4. Step 4: Simplify right side
    1,689,131.28x = 2,247,039,041,815.71
  5. Step 5: Solve for x
    x = 2,247,039,041,815.71/1,689,131.28
  6. Step 6: Final answer
    x = 1,330,292.72

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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.