Home / 1,561,715.88-2,155,152.73-873,379.91

Finding the Fourth Proportional to 1,561,715.88, 2,155,152.73 and 873,379.91

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Solution

The fourth proportional to 1,561,715.88, 2,155,152.73 and 873,379.91 is: 1,205,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,715.88 : 2,155,152.73 = 873,379.91 : x
  2. Step 2: Convert to fraction form
    1,561,715.88/2,155,152.73 = 873,379.91/x
  3. Step 3: Cross multiply
    1,561,715.88x = 2,155,152.73 × 873,379.91
  4. Step 4: Simplify right side
    1,561,715.88x = 1,882,267,097,363.65
  5. Step 5: Solve for x
    x = 1,882,267,097,363.65/1,561,715.88
  6. Step 6: Final answer
    x = 1,205,255.78

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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.