Home / 726,117.60-1,089,435.60-305,522.40

Finding the Fourth Proportional to 726,117.60, 1,089,435.60 and 305,522.40

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Solution

The fourth proportional to 726,117.60, 1,089,435.60 and 305,522.40 is: 458,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,117.60 : 1,089,435.60 = 305,522.40 : x
  2. Step 2: Convert to fraction form
    726,117.60/1,089,435.60 = 305,522.40/x
  3. Step 3: Cross multiply
    726,117.60x = 1,089,435.60 × 305,522.40
  4. Step 4: Simplify right side
    726,117.60x = 332,846,979,157.44
  5. Step 5: Solve for x
    x = 332,846,979,157.44/726,117.60
  6. Step 6: Final answer
    x = 458,392.66

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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.