Home / 831,147.80-1,243,611.30-551,211.80

Finding the Fourth Proportional to 831,147.80, 1,243,611.30 and 551,211.80

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Solution

The fourth proportional to 831,147.80, 1,243,611.30 and 551,211.80 is: 824,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,147.80 : 1,243,611.30 = 551,211.80 : x
  2. Step 2: Convert to fraction form
    831,147.80/1,243,611.30 = 551,211.80/x
  3. Step 3: Cross multiply
    831,147.80x = 1,243,611.30 × 551,211.80
  4. Step 4: Simplify right side
    831,147.80x = 685,493,223,173.34
  5. Step 5: Solve for x
    x = 685,493,223,173.34/831,147.80
  6. Step 6: Final answer
    x = 824,754.90

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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.