Home / 726,255.94-1,089,444.89-220,821.31

Finding the Fourth Proportional to 726,255.94, 1,089,444.89 and 220,821.31

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Solution

The fourth proportional to 726,255.94, 1,089,444.89 and 220,821.31 is: 331,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,255.94 : 1,089,444.89 = 220,821.31 : x
  2. Step 2: Convert to fraction form
    726,255.94/1,089,444.89 = 220,821.31/x
  3. Step 3: Cross multiply
    726,255.94x = 1,089,444.89 × 220,821.31
  4. Step 4: Simplify right side
    726,255.94x = 240,572,642,326.22
  5. Step 5: Solve for x
    x = 240,572,642,326.22/726,255.94
  6. Step 6: Final answer
    x = 331,250.50

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Double scale
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Similar ratio
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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.