Home / 1,318,657.20-1,977,791.40-372,123.60

Finding the Fourth Proportional to 1,318,657.20, 1,977,791.40 and 372,123.60

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Solution

The fourth proportional to 1,318,657.20, 1,977,791.40 and 372,123.60 is: 558,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,657.20 : 1,977,791.40 = 372,123.60 : x
  2. Step 2: Convert to fraction form
    1,318,657.20/1,977,791.40 = 372,123.60/x
  3. Step 3: Cross multiply
    1,318,657.20x = 1,977,791.40 × 372,123.60
  4. Step 4: Simplify right side
    1,318,657.20x = 735,982,855,817.04
  5. Step 5: Solve for x
    x = 735,982,855,817.04/1,318,657.20
  6. Step 6: Final answer
    x = 558,130.54

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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.