Home / 726,648.20-1,089,972.30-668,328.20

Finding the Fourth Proportional to 726,648.20, 1,089,972.30 and 668,328.20

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Solution

The fourth proportional to 726,648.20, 1,089,972.30 and 668,328.20 is: 1,002,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,648.20 : 1,089,972.30 = 668,328.20 : x
  2. Step 2: Convert to fraction form
    726,648.20/1,089,972.30 = 668,328.20/x
  3. Step 3: Cross multiply
    726,648.20x = 1,089,972.30 × 668,328.20
  4. Step 4: Simplify right side
    726,648.20x = 728,459,225,308.86
  5. Step 5: Solve for x
    x = 728,459,225,308.86/726,648.20
  6. Step 6: Final answer
    x = 1,002,492.30

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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.