Home / 853,856.64-1,280,093.76-355,593.60

Finding the Fourth Proportional to 853,856.64, 1,280,093.76 and 355,593.60

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Solution

The fourth proportional to 853,856.64, 1,280,093.76 and 355,593.60 is: 533,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,856.64 : 1,280,093.76 = 355,593.60 : x
  2. Step 2: Convert to fraction form
    853,856.64/1,280,093.76 = 355,593.60/x
  3. Step 3: Cross multiply
    853,856.64x = 1,280,093.76 × 355,593.60
  4. Step 4: Simplify right side
    853,856.64x = 455,193,148,455.94
  5. Step 5: Solve for x
    x = 455,193,148,455.94/853,856.64
  6. Step 6: Final answer
    x = 533,102.55

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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.