Home / 811,868.06-1,119,637.89-697,110.71

Finding the Fourth Proportional to 811,868.06, 1,119,637.89 and 697,110.71

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Solution

The fourth proportional to 811,868.06, 1,119,637.89 and 697,110.71 is: 961,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,868.06 : 1,119,637.89 = 697,110.71 : x
  2. Step 2: Convert to fraction form
    811,868.06/1,119,637.89 = 697,110.71/x
  3. Step 3: Cross multiply
    811,868.06x = 1,119,637.89 × 697,110.71
  4. Step 4: Simplify right side
    811,868.06x = 780,511,558,842.61
  5. Step 5: Solve for x
    x = 780,511,558,842.61/811,868.06
  6. Step 6: Final answer
    x = 961,377.34

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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.