Home / 404,493.20-607,128.60-205,038.80

Finding the Fourth Proportional to 404,493.20, 607,128.60 and 205,038.80

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Solution

The fourth proportional to 404,493.20, 607,128.60 and 205,038.80 is: 307,755.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,493.20 : 607,128.60 = 205,038.80 : x
  2. Step 2: Convert to fraction form
    404,493.20/607,128.60 = 205,038.80/x
  3. Step 3: Cross multiply
    404,493.20x = 607,128.60 × 205,038.80
  4. Step 4: Simplify right side
    404,493.20x = 124,484,919,589.68
  5. Step 5: Solve for x
    x = 124,484,919,589.68/404,493.20
  6. Step 6: Final answer
    x = 307,755.28

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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.