Home / 853,105.90-1,280,100.45-348,037.10

Finding the Fourth Proportional to 853,105.90, 1,280,100.45 and 348,037.10

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Solution

The fourth proportional to 853,105.90, 1,280,100.45 and 348,037.10 is: 522,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,105.90 : 1,280,100.45 = 348,037.10 : x
  2. Step 2: Convert to fraction form
    853,105.90/1,280,100.45 = 348,037.10/x
  3. Step 3: Cross multiply
    853,105.90x = 1,280,100.45 × 348,037.10
  4. Step 4: Simplify right side
    853,105.90x = 445,522,448,326.70
  5. Step 5: Solve for x
    x = 445,522,448,326.70/853,105.90
  6. Step 6: Final answer
    x = 522,235.81

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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.