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Finding the Fourth Proportional to 776,395, 1,164,593.04 and 215,430.04

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Solution

The fourth proportional to 776,395, 1,164,593.04 and 215,430.04 is: 323,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,395 : 1,164,593.04 = 215,430.04 : x
  2. Step 2: Convert to fraction form
    776,395/1,164,593.04 = 215,430.04/x
  3. Step 3: Cross multiply
    776,395x = 1,164,593.04 × 215,430.04
  4. Step 4: Simplify right side
    776,395x = 250,888,325,190.92
  5. Step 5: Solve for x
    x = 250,888,325,190.92/776,395
  6. Step 6: Final answer
    x = 323,145.21

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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.