Home / 1,576,928-2,176,160.64-861,536

Finding the Fourth Proportional to 1,576,928, 2,176,160.64 and 861,536

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Solution

The fourth proportional to 1,576,928, 2,176,160.64 and 861,536 is: 1,188,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576,928 : 2,176,160.64 = 861,536 : x
  2. Step 2: Convert to fraction form
    1,576,928/2,176,160.64 = 861,536/x
  3. Step 3: Cross multiply
    1,576,928x = 2,176,160.64 × 861,536
  4. Step 4: Simplify right side
    1,576,928x = 1,874,840,733,143.04
  5. Step 5: Solve for x
    x = 1,874,840,733,143.04/1,576,928
  6. Step 6: Final answer
    x = 1,188,919.68

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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.