Home / 1,186,826.98-1,780,520.51-388,105.42

Finding the Fourth Proportional to 1,186,826.98, 1,780,520.51 and 388,105.42

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Solution

The fourth proportional to 1,186,826.98, 1,780,520.51 and 388,105.42 is: 582,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,826.98 : 1,780,520.51 = 388,105.42 : x
  2. Step 2: Convert to fraction form
    1,186,826.98/1,780,520.51 = 388,105.42/x
  3. Step 3: Cross multiply
    1,186,826.98x = 1,780,520.51 × 388,105.42
  4. Step 4: Simplify right side
    1,186,826.98x = 691,029,658,411.64
  5. Step 5: Solve for x
    x = 691,029,658,411.64/1,186,826.98
  6. Step 6: Final answer
    x = 582,249.70

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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.