Home / 776,138.90-1,164,402.10-270,707.13

Finding the Fourth Proportional to 776,138.90, 1,164,402.10 and 270,707.13

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Solution

The fourth proportional to 776,138.90, 1,164,402.10 and 270,707.13 is: 406,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,138.90 : 1,164,402.10 = 270,707.13 : x
  2. Step 2: Convert to fraction form
    776,138.90/1,164,402.10 = 270,707.13/x
  3. Step 3: Cross multiply
    776,138.90x = 1,164,402.10 × 270,707.13
  4. Step 4: Simplify right side
    776,138.90x = 315,211,954,765.65
  5. Step 5: Solve for x
    x = 315,211,954,765.65/776,138.90
  6. Step 6: Final answer
    x = 406,128.28

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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.