Home / 543,615.20-815,811.60-228,298.40

Finding the Fourth Proportional to 543,615.20, 815,811.60 and 228,298.40

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Solution

The fourth proportional to 543,615.20, 815,811.60 and 228,298.40 is: 342,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,615.20 : 815,811.60 = 228,298.40 : x
  2. Step 2: Convert to fraction form
    543,615.20/815,811.60 = 228,298.40/x
  3. Step 3: Cross multiply
    543,615.20x = 815,811.60 × 228,298.40
  4. Step 4: Simplify right side
    543,615.20x = 186,248,482,981.44
  5. Step 5: Solve for x
    x = 186,248,482,981.44/543,615.20
  6. Step 6: Final answer
    x = 342,610.88

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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.