Home / 831,504.40-1,247,256.60-819,062.80

Finding the Fourth Proportional to 831,504.40, 1,247,256.60 and 819,062.80

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Solution

The fourth proportional to 831,504.40, 1,247,256.60 and 819,062.80 is: 1,228,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,504.40 : 1,247,256.60 = 819,062.80 : x
  2. Step 2: Convert to fraction form
    831,504.40/1,247,256.60 = 819,062.80/x
  3. Step 3: Cross multiply
    831,504.40x = 1,247,256.60 × 819,062.80
  4. Step 4: Simplify right side
    831,504.40x = 1,021,581,483,114.48
  5. Step 5: Solve for x
    x = 1,021,581,483,114.48/831,504.40
  6. Step 6: Final answer
    x = 1,228,594.20

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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.