Home / 724,048.47-1,086,248.17-218,579.21

Finding the Fourth Proportional to 724,048.47, 1,086,248.17 and 218,579.21

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Solution

The fourth proportional to 724,048.47, 1,086,248.17 and 218,579.21 is: 327,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,048.47 : 1,086,248.17 = 218,579.21 : x
  2. Step 2: Convert to fraction form
    724,048.47/1,086,248.17 = 218,579.21/x
  3. Step 3: Cross multiply
    724,048.47x = 1,086,248.17 × 218,579.21
  4. Step 4: Simplify right side
    724,048.47x = 237,431,265,777.96
  5. Step 5: Solve for x
    x = 237,431,265,777.96/724,048.47
  6. Step 6: Final answer
    x = 327,921.78

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1.5x scale

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.