Home / 724,234.60-1,086,351.90-718,985.80

Finding the Fourth Proportional to 724,234.60, 1,086,351.90 and 718,985.80

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Solution

The fourth proportional to 724,234.60, 1,086,351.90 and 718,985.80 is: 1,078,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,234.60 : 1,086,351.90 = 718,985.80 : x
  2. Step 2: Convert to fraction form
    724,234.60/1,086,351.90 = 718,985.80/x
  3. Step 3: Cross multiply
    724,234.60x = 1,086,351.90 × 718,985.80
  4. Step 4: Simplify right side
    724,234.60x = 781,071,589,903.02
  5. Step 5: Solve for x
    x = 781,071,589,903.02/724,234.60
  6. Step 6: Final answer
    x = 1,078,478.70

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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.