Home / 1,266,859.86-1,748,263.97-686,081.18

Finding the Fourth Proportional to 1,266,859.86, 1,748,263.97 and 686,081.18

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Solution

The fourth proportional to 1,266,859.86, 1,748,263.97 and 686,081.18 is: 946,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,859.86 : 1,748,263.97 = 686,081.18 : x
  2. Step 2: Convert to fraction form
    1,266,859.86/1,748,263.97 = 686,081.18/x
  3. Step 3: Cross multiply
    1,266,859.86x = 1,748,263.97 × 686,081.18
  4. Step 4: Simplify right side
    1,266,859.86x = 1,199,450,995,317.36
  5. Step 5: Solve for x
    x = 1,199,450,995,317.36/1,266,859.86
  6. Step 6: Final answer
    x = 946,790.59

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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.