Home / 1,218,805.11-1,827,088.08-419,896.71

Finding the Fourth Proportional to 1,218,805.11, 1,827,088.08 and 419,896.71

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Solution

The fourth proportional to 1,218,805.11, 1,827,088.08 and 419,896.71 is: 629,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,805.11 : 1,827,088.08 = 419,896.71 : x
  2. Step 2: Convert to fraction form
    1,218,805.11/1,827,088.08 = 419,896.71/x
  3. Step 3: Cross multiply
    1,218,805.11x = 1,827,088.08 × 419,896.71
  4. Step 4: Simplify right side
    1,218,805.11x = 767,188,273,672.22
  5. Step 5: Solve for x
    x = 767,188,273,672.22/1,218,805.11
  6. Step 6: Final answer
    x = 629,459.35

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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.