Home / 853,108.40-1,280,104.20-348,039.60

Finding the Fourth Proportional to 853,108.40, 1,280,104.20 and 348,039.60

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Solution

The fourth proportional to 853,108.40, 1,280,104.20 and 348,039.60 is: 522,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,108.40 : 1,280,104.20 = 348,039.60 : x
  2. Step 2: Convert to fraction form
    853,108.40/1,280,104.20 = 348,039.60/x
  3. Step 3: Cross multiply
    853,108.40x = 1,280,104.20 × 348,039.60
  4. Step 4: Simplify right side
    853,108.40x = 445,526,953,726.32
  5. Step 5: Solve for x
    x = 445,526,953,726.32/853,108.40
  6. Step 6: Final answer
    x = 522,239.56

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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.