Home / 1,399,710.69-1,930,992.35-855,869.13

Finding the Fourth Proportional to 1,399,710.69, 1,930,992.35 and 855,869.13

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Solution

The fourth proportional to 1,399,710.69, 1,930,992.35 and 855,869.13 is: 1,180,727.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,710.69 : 1,930,992.35 = 855,869.13 : x
  2. Step 2: Convert to fraction form
    1,399,710.69/1,930,992.35 = 855,869.13/x
  3. Step 3: Cross multiply
    1,399,710.69x = 1,930,992.35 × 855,869.13
  4. Step 4: Simplify right side
    1,399,710.69x = 1,652,676,738,351.81
  5. Step 5: Solve for x
    x = 1,652,676,738,351.81/1,399,710.69
  6. Step 6: Final answer
    x = 1,180,727.38

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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.