Home / 1,318,627.20-1,977,940.80-432,163.20

Finding the Fourth Proportional to 1,318,627.20, 1,977,940.80 and 432,163.20

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Solution

The fourth proportional to 1,318,627.20, 1,977,940.80 and 432,163.20 is: 648,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,627.20 : 1,977,940.80 = 432,163.20 : x
  2. Step 2: Convert to fraction form
    1,318,627.20/1,977,940.80 = 432,163.20/x
  3. Step 3: Cross multiply
    1,318,627.20x = 1,977,940.80 × 432,163.20
  4. Step 4: Simplify right side
    1,318,627.20x = 854,793,225,538.56
  5. Step 5: Solve for x
    x = 854,793,225,538.56/1,318,627.20
  6. Step 6: Final answer
    x = 648,244.80

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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.