Home / 1,338,416.40-2,005,852.44-981,760.40

Finding the Fourth Proportional to 1,338,416.40, 2,005,852.44 and 981,760.40

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Solution

The fourth proportional to 1,338,416.40, 2,005,852.44 and 981,760.40 is: 1,471,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,416.40 : 2,005,852.44 = 981,760.40 : x
  2. Step 2: Convert to fraction form
    1,338,416.40/2,005,852.44 = 981,760.40/x
  3. Step 3: Cross multiply
    1,338,416.40x = 2,005,852.44 × 981,760.40
  4. Step 4: Simplify right side
    1,338,416.40x = 1,969,266,493,835.38
  5. Step 5: Solve for x
    x = 1,969,266,493,835.38/1,338,416.40
  6. Step 6: Final answer
    x = 1,471,340.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.