Home / 776,138.80-1,164,401.96-270,707.04

Finding the Fourth Proportional to 776,138.80, 1,164,401.96 and 270,707.04

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Solution

The fourth proportional to 776,138.80, 1,164,401.96 and 270,707.04 is: 406,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,138.80 : 1,164,401.96 = 270,707.04 : x
  2. Step 2: Convert to fraction form
    776,138.80/1,164,401.96 = 270,707.04/x
  3. Step 3: Cross multiply
    776,138.80x = 1,164,401.96 × 270,707.04
  4. Step 4: Simplify right side
    776,138.80x = 315,211,806,608.26
  5. Step 5: Solve for x
    x = 315,211,806,608.26/776,138.80
  6. Step 6: Final answer
    x = 406,128.14

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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.