Home / 1,555,102.77-2,145,781.71-866,623.71

Finding the Fourth Proportional to 1,555,102.77, 2,145,781.71 and 866,623.71

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Solution

The fourth proportional to 1,555,102.77, 2,145,781.71 and 866,623.71 is: 1,195,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,102.77 : 2,145,781.71 = 866,623.71 : x
  2. Step 2: Convert to fraction form
    1,555,102.77/2,145,781.71 = 866,623.71/x
  3. Step 3: Cross multiply
    1,555,102.77x = 2,145,781.71 × 866,623.71
  4. Step 4: Simplify right side
    1,555,102.77x = 1,859,585,306,370.34
  5. Step 5: Solve for x
    x = 1,859,585,306,370.34/1,555,102.77
  6. Step 6: Final answer
    x = 1,195,795.76

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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.