Home / 1,689,159.78-2,331,078.39-963,993.06

Finding the Fourth Proportional to 1,689,159.78, 2,331,078.39 and 963,993.06

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Solution

The fourth proportional to 1,689,159.78, 2,331,078.39 and 963,993.06 is: 1,330,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,159.78 : 2,331,078.39 = 963,993.06 : x
  2. Step 2: Convert to fraction form
    1,689,159.78/2,331,078.39 = 963,993.06/x
  3. Step 3: Cross multiply
    1,689,159.78x = 2,331,078.39 × 963,993.06
  4. Step 4: Simplify right side
    1,689,159.78x = 2,247,143,390,275.97
  5. Step 5: Solve for x
    x = 2,247,143,390,275.97/1,689,159.78
  6. Step 6: Final answer
    x = 1,330,332.05

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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.