Home / 543,739.80-815,901.30-228,228.60

Finding the Fourth Proportional to 543,739.80, 815,901.30 and 228,228.60

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Solution

The fourth proportional to 543,739.80, 815,901.30 and 228,228.60 is: 342,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,739.80 : 815,901.30 = 228,228.60 : x
  2. Step 2: Convert to fraction form
    543,739.80/815,901.30 = 228,228.60/x
  3. Step 3: Cross multiply
    543,739.80x = 815,901.30 × 228,228.60
  4. Step 4: Simplify right side
    543,739.80x = 186,212,011,437.18
  5. Step 5: Solve for x
    x = 186,212,011,437.18/543,739.80
  6. Step 6: Final answer
    x = 342,465.30

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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.