Home / 726,615.42-1,089,929.25-253,299.90

Finding the Fourth Proportional to 726,615.42, 1,089,929.25 and 253,299.90

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Solution

The fourth proportional to 726,615.42, 1,089,929.25 and 253,299.90 is: 379,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,615.42 : 1,089,929.25 = 253,299.90 : x
  2. Step 2: Convert to fraction form
    726,615.42/1,089,929.25 = 253,299.90/x
  3. Step 3: Cross multiply
    726,615.42x = 1,089,929.25 × 253,299.90
  4. Step 4: Simplify right side
    726,615.42x = 276,078,970,032.08
  5. Step 5: Solve for x
    x = 276,078,970,032.08/726,615.42
  6. Step 6: Final answer
    x = 379,951.98

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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.