Home / 726,761.20-1,089,234.60-371,916.40

Finding the Fourth Proportional to 726,761.20, 1,089,234.60 and 371,916.40

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Solution

The fourth proportional to 726,761.20, 1,089,234.60 and 371,916.40 is: 557,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,761.20 : 1,089,234.60 = 371,916.40 : x
  2. Step 2: Convert to fraction form
    726,761.20/1,089,234.60 = 371,916.40/x
  3. Step 3: Cross multiply
    726,761.20x = 1,089,234.60 × 371,916.40
  4. Step 4: Simplify right side
    726,761.20x = 405,104,211,187.44
  5. Step 5: Solve for x
    x = 405,104,211,187.44/726,761.20
  6. Step 6: Final answer
    x = 557,410.34

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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.