Home / 809,022.80-1,213,534.20-726,354.20

Finding the Fourth Proportional to 809,022.80, 1,213,534.20 and 726,354.20

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Solution

The fourth proportional to 809,022.80, 1,213,534.20 and 726,354.20 is: 1,089,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,022.80 : 1,213,534.20 = 726,354.20 : x
  2. Step 2: Convert to fraction form
    809,022.80/1,213,534.20 = 726,354.20/x
  3. Step 3: Cross multiply
    809,022.80x = 1,213,534.20 × 726,354.20
  4. Step 4: Simplify right side
    809,022.80x = 881,455,663,013.64
  5. Step 5: Solve for x
    x = 881,455,663,013.64/809,022.80
  6. Step 6: Final answer
    x = 1,089,531.30

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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.