Home / 1,553,416.39-2,143,681.11-855,716.72

Finding the Fourth Proportional to 1,553,416.39, 2,143,681.11 and 855,716.72

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Solution

The fourth proportional to 1,553,416.39, 2,143,681.11 and 855,716.72 is: 1,180,870.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,416.39 : 2,143,681.11 = 855,716.72 : x
  2. Step 2: Convert to fraction form
    1,553,416.39/2,143,681.11 = 855,716.72/x
  3. Step 3: Cross multiply
    1,553,416.39x = 2,143,681.11 × 855,716.72
  4. Step 4: Simplify right side
    1,553,416.39x = 1,834,383,761,674.61
  5. Step 5: Solve for x
    x = 1,834,383,761,674.61/1,553,416.39
  6. Step 6: Final answer
    x = 1,180,870.61

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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.