Home / 726,564.60-1,089,717.30-459,847.80

Finding the Fourth Proportional to 726,564.60, 1,089,717.30 and 459,847.80

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Solution

The fourth proportional to 726,564.60, 1,089,717.30 and 459,847.80 is: 689,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,564.60 : 1,089,717.30 = 459,847.80 : x
  2. Step 2: Convert to fraction form
    726,564.60/1,089,717.30 = 459,847.80/x
  3. Step 3: Cross multiply
    726,564.60x = 1,089,717.30 × 459,847.80
  4. Step 4: Simplify right side
    726,564.60x = 501,104,103,026.94
  5. Step 5: Solve for x
    x = 501,104,103,026.94/726,564.60
  6. Step 6: Final answer
    x = 689,689.68

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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.