Home / 1,472,128.20-2,214,097.20-1,318,600.80

Finding the Fourth Proportional to 1,472,128.20, 2,214,097.20 and 1,318,600.80

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Solution

The fourth proportional to 1,472,128.20, 2,214,097.20 and 1,318,600.80 is: 1,983,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,128.20 : 2,214,097.20 = 1,318,600.80 : x
  2. Step 2: Convert to fraction form
    1,472,128.20/2,214,097.20 = 1,318,600.80/x
  3. Step 3: Cross multiply
    1,472,128.20x = 2,214,097.20 × 1,318,600.80
  4. Step 4: Simplify right side
    1,472,128.20x = 2,919,510,339,197.76
  5. Step 5: Solve for x
    x = 2,919,510,339,197.76/1,472,128.20
  6. Step 6: Final answer
    x = 1,983,190.28

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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.