Home / 831,145.80-1,243,608.24-551,209.80

Finding the Fourth Proportional to 831,145.80, 1,243,608.24 and 551,209.80

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Solution

The fourth proportional to 831,145.80, 1,243,608.24 and 551,209.80 is: 824,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,145.80 : 1,243,608.24 = 551,209.80 : x
  2. Step 2: Convert to fraction form
    831,145.80/1,243,608.24 = 551,209.80/x
  3. Step 3: Cross multiply
    831,145.80x = 1,243,608.24 × 551,209.80
  4. Step 4: Simplify right side
    831,145.80x = 685,489,049,248.75
  5. Step 5: Solve for x
    x = 685,489,049,248.75/831,145.80
  6. Step 6: Final answer
    x = 824,751.87

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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.