Home / 814,187.60-1,221,284.54-340,540.72

Finding the Fourth Proportional to 814,187.60, 1,221,284.54 and 340,540.72

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Solution

The fourth proportional to 814,187.60, 1,221,284.54 and 340,540.72 is: 510,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,187.60 : 1,221,284.54 = 340,540.72 : x
  2. Step 2: Convert to fraction form
    814,187.60/1,221,284.54 = 340,540.72/x
  3. Step 3: Cross multiply
    814,187.60x = 1,221,284.54 × 340,540.72
  4. Step 4: Simplify right side
    814,187.60x = 415,897,116,576.47
  5. Step 5: Solve for x
    x = 415,897,116,576.47/814,187.60
  6. Step 6: Final answer
    x = 510,812.39

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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.