Home / 726,276.30-1,089,414.45-353,028.30

Finding the Fourth Proportional to 726,276.30, 1,089,414.45 and 353,028.30

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Solution

The fourth proportional to 726,276.30, 1,089,414.45 and 353,028.30 is: 529,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,276.30 : 1,089,414.45 = 353,028.30 : x
  2. Step 2: Convert to fraction form
    726,276.30/1,089,414.45 = 353,028.30/x
  3. Step 3: Cross multiply
    726,276.30x = 1,089,414.45 × 353,028.30
  4. Step 4: Simplify right side
    726,276.30x = 384,594,131,278.94
  5. Step 5: Solve for x
    x = 384,594,131,278.94/726,276.30
  6. Step 6: Final answer
    x = 529,542.45

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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.