Home / 853,110.40-1,280,107.20-348,041.60

Finding the Fourth Proportional to 853,110.40, 1,280,107.20 and 348,041.60

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Solution

The fourth proportional to 853,110.40, 1,280,107.20 and 348,041.60 is: 522,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,110.40 : 1,280,107.20 = 348,041.60 : x
  2. Step 2: Convert to fraction form
    853,110.40/1,280,107.20 = 348,041.60/x
  3. Step 3: Cross multiply
    853,110.40x = 1,280,107.20 × 348,041.60
  4. Step 4: Simplify right side
    853,110.40x = 445,530,558,059.52
  5. Step 5: Solve for x
    x = 445,530,558,059.52/853,110.40
  6. Step 6: Final answer
    x = 522,242.56

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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.