Home / 724,127.40-1,086,579.90-303,445.80

Finding the Fourth Proportional to 724,127.40, 1,086,579.90 and 303,445.80

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Solution

The fourth proportional to 724,127.40, 1,086,579.90 and 303,445.80 is: 455,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,127.40 : 1,086,579.90 = 303,445.80 : x
  2. Step 2: Convert to fraction form
    724,127.40/1,086,579.90 = 303,445.80/x
  3. Step 3: Cross multiply
    724,127.40x = 1,086,579.90 × 303,445.80
  4. Step 4: Simplify right side
    724,127.40x = 329,718,107,019.42
  5. Step 5: Solve for x
    x = 329,718,107,019.42/724,127.40
  6. Step 6: Final answer
    x = 455,331.63

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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.