Home / 1,191,490.85-1,786,231.77-517,064.09

Finding the Fourth Proportional to 1,191,490.85, 1,786,231.77 and 517,064.09

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Solution

The fourth proportional to 1,191,490.85, 1,786,231.77 and 517,064.09 is: 775,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,490.85 : 1,786,231.77 = 517,064.09 : x
  2. Step 2: Convert to fraction form
    1,191,490.85/1,786,231.77 = 517,064.09/x
  3. Step 3: Cross multiply
    1,191,490.85x = 1,786,231.77 × 517,064.09
  4. Step 4: Simplify right side
    1,191,490.85x = 923,596,295,752.98
  5. Step 5: Solve for x
    x = 923,596,295,752.98/1,191,490.85
  6. Step 6: Final answer
    x = 775,160.21

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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.