Home / 809,626.56-1,117,379.42-673,420.20

Finding the Fourth Proportional to 809,626.56, 1,117,379.42 and 673,420.20

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Solution

The fourth proportional to 809,626.56, 1,117,379.42 and 673,420.20 is: 929,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,626.56 : 1,117,379.42 = 673,420.20 : x
  2. Step 2: Convert to fraction form
    809,626.56/1,117,379.42 = 673,420.20/x
  3. Step 3: Cross multiply
    809,626.56x = 1,117,379.42 × 673,420.20
  4. Step 4: Simplify right side
    809,626.56x = 752,465,872,492.28
  5. Step 5: Solve for x
    x = 752,465,872,492.28/809,626.56
  6. Step 6: Final answer
    x = 929,398.70

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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.