Home / 726,089.70-1,089,134.55-668,028.90

Finding the Fourth Proportional to 726,089.70, 1,089,134.55 and 668,028.90

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Solution

The fourth proportional to 726,089.70, 1,089,134.55 and 668,028.90 is: 1,002,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,089.70 : 1,089,134.55 = 668,028.90 : x
  2. Step 2: Convert to fraction form
    726,089.70/1,089,134.55 = 668,028.90/x
  3. Step 3: Cross multiply
    726,089.70x = 1,089,134.55 × 668,028.90
  4. Step 4: Simplify right side
    726,089.70x = 727,573,355,388.50
  5. Step 5: Solve for x
    x = 727,573,355,388.50/726,089.70
  6. Step 6: Final answer
    x = 1,002,043.35

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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.