Home / 726,450.66-1,089,674.16-346,218.84

Finding the Fourth Proportional to 726,450.66, 1,089,674.16 and 346,218.84

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Solution

The fourth proportional to 726,450.66, 1,089,674.16 and 346,218.84 is: 519,327.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,450.66 : 1,089,674.16 = 346,218.84 : x
  2. Step 2: Convert to fraction form
    726,450.66/1,089,674.16 = 346,218.84/x
  3. Step 3: Cross multiply
    726,450.66x = 1,089,674.16 × 346,218.84
  4. Step 4: Simplify right side
    726,450.66x = 377,265,723,653.17
  5. Step 5: Solve for x
    x = 377,265,723,653.17/726,450.66
  6. Step 6: Final answer
    x = 519,327.39

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Double scale
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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.