Home / 1,538,998.80-2,123,816.40-859,935.30

Finding the Fourth Proportional to 1,538,998.80, 2,123,816.40 and 859,935.30

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Solution

The fourth proportional to 1,538,998.80, 2,123,816.40 and 859,935.30 is: 1,186,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,998.80 : 2,123,816.40 = 859,935.30 : x
  2. Step 2: Convert to fraction form
    1,538,998.80/2,123,816.40 = 859,935.30/x
  3. Step 3: Cross multiply
    1,538,998.80x = 2,123,816.40 × 859,935.30
  4. Step 4: Simplify right side
    1,538,998.80x = 1,826,344,693,078.92
  5. Step 5: Solve for x
    x = 1,826,344,693,078.92/1,538,998.80
  6. Step 6: Final answer
    x = 1,186,709.63

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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.