Home / 809,816.50-1,117,546.86-470,306.62

Finding the Fourth Proportional to 809,816.50, 1,117,546.86 and 470,306.62

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Solution

The fourth proportional to 809,816.50, 1,117,546.86 and 470,306.62 is: 649,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,816.50 : 1,117,546.86 = 470,306.62 : x
  2. Step 2: Convert to fraction form
    809,816.50/1,117,546.86 = 470,306.62/x
  3. Step 3: Cross multiply
    809,816.50x = 1,117,546.86 × 470,306.62
  4. Step 4: Simplify right side
    809,816.50x = 525,589,686,418.21
  5. Step 5: Solve for x
    x = 525,589,686,418.21/809,816.50
  6. Step 6: Final answer
    x = 649,023.19

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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.