Home / 726,113.20-1,089,688.20-410,234.80

Finding the Fourth Proportional to 726,113.20, 1,089,688.20 and 410,234.80

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Solution

The fourth proportional to 726,113.20, 1,089,688.20 and 410,234.80 is: 615,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,113.20 : 1,089,688.20 = 410,234.80 : x
  2. Step 2: Convert to fraction form
    726,113.20/1,089,688.20 = 410,234.80/x
  3. Step 3: Cross multiply
    726,113.20x = 1,089,688.20 × 410,234.80
  4. Step 4: Simplify right side
    726,113.20x = 447,028,020,789.36
  5. Step 5: Solve for x
    x = 447,028,020,789.36/726,113.20
  6. Step 6: Final answer
    x = 615,645.08

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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.