Home / 1,318,729.20-1,977,899.40-372,195.60

Finding the Fourth Proportional to 1,318,729.20, 1,977,899.40 and 372,195.60

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Solution

The fourth proportional to 1,318,729.20, 1,977,899.40 and 372,195.60 is: 558,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,729.20 : 1,977,899.40 = 372,195.60 : x
  2. Step 2: Convert to fraction form
    1,318,729.20/1,977,899.40 = 372,195.60/x
  3. Step 3: Cross multiply
    1,318,729.20x = 1,977,899.40 × 372,195.60
  4. Step 4: Simplify right side
    1,318,729.20x = 736,165,453,922.64
  5. Step 5: Solve for x
    x = 736,165,453,922.64/1,318,729.20
  6. Step 6: Final answer
    x = 558,238.53

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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.