Home / 831,149.80-1,243,614.30-551,213.80

Finding the Fourth Proportional to 831,149.80, 1,243,614.30 and 551,213.80

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Solution

The fourth proportional to 831,149.80, 1,243,614.30 and 551,213.80 is: 824,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,149.80 : 1,243,614.30 = 551,213.80 : x
  2. Step 2: Convert to fraction form
    831,149.80/1,243,614.30 = 551,213.80/x
  3. Step 3: Cross multiply
    831,149.80x = 1,243,614.30 × 551,213.80
  4. Step 4: Simplify right side
    831,149.80x = 685,497,364,037.34
  5. Step 5: Solve for x
    x = 685,497,364,037.34/831,149.80
  6. Step 6: Final answer
    x = 824,757.90

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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.