Home / 724,433.56-1,086,207.09-345,470.20

Finding the Fourth Proportional to 724,433.56, 1,086,207.09 and 345,470.20

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Solution

The fourth proportional to 724,433.56, 1,086,207.09 and 345,470.20 is: 517,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,433.56 : 1,086,207.09 = 345,470.20 : x
  2. Step 2: Convert to fraction form
    724,433.56/1,086,207.09 = 345,470.20/x
  3. Step 3: Cross multiply
    724,433.56x = 1,086,207.09 × 345,470.20
  4. Step 4: Simplify right side
    724,433.56x = 375,252,180,623.72
  5. Step 5: Solve for x
    x = 375,252,180,623.72/724,433.56
  6. Step 6: Final answer
    x = 517,993.92

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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.