Home / 1,318,755.20-1,977,938.40-372,221.60

Finding the Fourth Proportional to 1,318,755.20, 1,977,938.40 and 372,221.60

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Solution

The fourth proportional to 1,318,755.20, 1,977,938.40 and 372,221.60 is: 558,277.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,755.20 : 1,977,938.40 = 372,221.60 : x
  2. Step 2: Convert to fraction form
    1,318,755.20/1,977,938.40 = 372,221.60/x
  3. Step 3: Cross multiply
    1,318,755.20x = 1,977,938.40 × 372,221.60
  4. Step 4: Simplify right side
    1,318,755.20x = 736,231,395,949.44
  5. Step 5: Solve for x
    x = 736,231,395,949.44/1,318,755.20
  6. Step 6: Final answer
    x = 558,277.53

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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.