Home / 831,642.30-1,247,463.45-726,666.30

Finding the Fourth Proportional to 831,642.30, 1,247,463.45 and 726,666.30

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Solution

The fourth proportional to 831,642.30, 1,247,463.45 and 726,666.30 is: 1,089,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,642.30 : 1,247,463.45 = 726,666.30 : x
  2. Step 2: Convert to fraction form
    831,642.30/1,247,463.45 = 726,666.30/x
  3. Step 3: Cross multiply
    831,642.30x = 1,247,463.45 × 726,666.30
  4. Step 4: Simplify right side
    831,642.30x = 906,489,649,596.74
  5. Step 5: Solve for x
    x = 906,489,649,596.74/831,642.30
  6. Step 6: Final answer
    x = 1,089,999.45

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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.