Home / 831,810.40-1,247,101.20-332,917.60

Finding the Fourth Proportional to 831,810.40, 1,247,101.20 and 332,917.60

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Solution

The fourth proportional to 831,810.40, 1,247,101.20 and 332,917.60 is: 499,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,810.40 : 1,247,101.20 = 332,917.60 : x
  2. Step 2: Convert to fraction form
    831,810.40/1,247,101.20 = 332,917.60/x
  3. Step 3: Cross multiply
    831,810.40x = 1,247,101.20 × 332,917.60
  4. Step 4: Simplify right side
    831,810.40x = 415,181,938,461.12
  5. Step 5: Solve for x
    x = 415,181,938,461.12/831,810.40
  6. Step 6: Final answer
    x = 499,130.50

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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.