Home / 1,490,584.80-2,235,704.40-425,791.20

Finding the Fourth Proportional to 1,490,584.80, 2,235,704.40 and 425,791.20

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Solution

The fourth proportional to 1,490,584.80, 2,235,704.40 and 425,791.20 is: 638,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,584.80 : 2,235,704.40 = 425,791.20 : x
  2. Step 2: Convert to fraction form
    1,490,584.80/2,235,704.40 = 425,791.20/x
  3. Step 3: Cross multiply
    1,490,584.80x = 2,235,704.40 × 425,791.20
  4. Step 4: Simplify right side
    1,490,584.80x = 951,943,259,321.28
  5. Step 5: Solve for x
    x = 951,943,259,321.28/1,490,584.80
  6. Step 6: Final answer
    x = 638,637.44

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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.