Home / 1,160,147.88-1,600,979.94-643,871.82

Finding the Fourth Proportional to 1,160,147.88, 1,600,979.94 and 643,871.82

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Solution

The fourth proportional to 1,160,147.88, 1,600,979.94 and 643,871.82 is: 888,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,147.88 : 1,600,979.94 = 643,871.82 : x
  2. Step 2: Convert to fraction form
    1,160,147.88/1,600,979.94 = 643,871.82/x
  3. Step 3: Cross multiply
    1,160,147.88x = 1,600,979.94 × 643,871.82
  4. Step 4: Simplify right side
    1,160,147.88x = 1,030,825,867,751.29
  5. Step 5: Solve for x
    x = 1,030,825,867,751.29/1,160,147.88
  6. Step 6: Final answer
    x = 888,529.72

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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.