Home / 819,370.80-1,229,056.20-228,394.80

Finding the Fourth Proportional to 819,370.80, 1,229,056.20 and 228,394.80

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Solution

The fourth proportional to 819,370.80, 1,229,056.20 and 228,394.80 is: 342,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,370.80 : 1,229,056.20 = 228,394.80 : x
  2. Step 2: Convert to fraction form
    819,370.80/1,229,056.20 = 228,394.80/x
  3. Step 3: Cross multiply
    819,370.80x = 1,229,056.20 × 228,394.80
  4. Step 4: Simplify right side
    819,370.80x = 280,710,044,987.76
  5. Step 5: Solve for x
    x = 280,710,044,987.76/819,370.80
  6. Step 6: Final answer
    x = 342,592.20

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Double scale
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Similar ratio
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1.5x scale

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.