Home / 690,722.20-952,943.79-418,593.78

Finding the Fourth Proportional to 690,722.20, 952,943.79 and 418,593.78

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Solution

The fourth proportional to 690,722.20, 952,943.79 and 418,593.78 is: 577,506.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,722.20 : 952,943.79 = 418,593.78 : x
  2. Step 2: Convert to fraction form
    690,722.20/952,943.79 = 418,593.78/x
  3. Step 3: Cross multiply
    690,722.20x = 952,943.79 × 418,593.78
  4. Step 4: Simplify right side
    690,722.20x = 398,896,343,183.63
  5. Step 5: Solve for x
    x = 398,896,343,183.63/690,722.20
  6. Step 6: Final answer
    x = 577,506.19

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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.