Home / 831,914.30-1,247,871.47-270,948.80

Finding the Fourth Proportional to 831,914.30, 1,247,871.47 and 270,948.80

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Solution

The fourth proportional to 831,914.30, 1,247,871.47 and 270,948.80 is: 406,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,914.30 : 1,247,871.47 = 270,948.80 : x
  2. Step 2: Convert to fraction form
    831,914.30/1,247,871.47 = 270,948.80/x
  3. Step 3: Cross multiply
    831,914.30x = 1,247,871.47 × 270,948.80
  4. Step 4: Simplify right side
    831,914.30x = 338,109,279,115.67
  5. Step 5: Solve for x
    x = 338,109,279,115.67/831,914.30
  6. Step 6: Final answer
    x = 406,423.21

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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.