Home / 1,448,789.79-2,172,298.94-690,863.07

Finding the Fourth Proportional to 1,448,789.79, 2,172,298.94 and 690,863.07

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Solution

The fourth proportional to 1,448,789.79, 2,172,298.94 and 690,863.07 is: 1,035,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,789.79 : 2,172,298.94 = 690,863.07 : x
  2. Step 2: Convert to fraction form
    1,448,789.79/2,172,298.94 = 690,863.07/x
  3. Step 3: Cross multiply
    1,448,789.79x = 2,172,298.94 × 690,863.07
  4. Step 4: Simplify right side
    1,448,789.79x = 1,500,761,105,511.81
  5. Step 5: Solve for x
    x = 1,500,761,105,511.81/1,448,789.79
  6. Step 6: Final answer
    x = 1,035,872.23

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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.