Home / 627,871.12-942,225.45-228,511.78

Finding the Fourth Proportional to 627,871.12, 942,225.45 and 228,511.78

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Solution

The fourth proportional to 627,871.12, 942,225.45 and 228,511.78 is: 342,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,871.12 : 942,225.45 = 228,511.78 : x
  2. Step 2: Convert to fraction form
    627,871.12/942,225.45 = 228,511.78/x
  3. Step 3: Cross multiply
    627,871.12x = 942,225.45 × 228,511.78
  4. Step 4: Simplify right side
    627,871.12x = 215,309,614,740.80
  5. Step 5: Solve for x
    x = 215,309,614,740.80/627,871.12
  6. Step 6: Final answer
    x = 342,920.08

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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.