Home / 853,398.60-1,280,093.28-347,957.62

Finding the Fourth Proportional to 853,398.60, 1,280,093.28 and 347,957.62

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Solution

The fourth proportional to 853,398.60, 1,280,093.28 and 347,957.62 is: 521,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,398.60 : 1,280,093.28 = 347,957.62 : x
  2. Step 2: Convert to fraction form
    853,398.60/1,280,093.28 = 347,957.62/x
  3. Step 3: Cross multiply
    853,398.60x = 1,280,093.28 × 347,957.62
  4. Step 4: Simplify right side
    853,398.60x = 445,418,211,086.79
  5. Step 5: Solve for x
    x = 445,418,211,086.79/853,398.60
  6. Step 6: Final answer
    x = 521,934.55

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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.