Home / 815,744.20-1,223,616.30-605,792.20

Finding the Fourth Proportional to 815,744.20, 1,223,616.30 and 605,792.20

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Solution

The fourth proportional to 815,744.20, 1,223,616.30 and 605,792.20 is: 908,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,744.20 : 1,223,616.30 = 605,792.20 : x
  2. Step 2: Convert to fraction form
    815,744.20/1,223,616.30 = 605,792.20/x
  3. Step 3: Cross multiply
    815,744.20x = 1,223,616.30 × 605,792.20
  4. Step 4: Simplify right side
    815,744.20x = 741,257,210,332.86
  5. Step 5: Solve for x
    x = 741,257,210,332.86/815,744.20
  6. Step 6: Final answer
    x = 908,688.30

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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.