Home / 717,745.80-1,076,618.73-212,267.43

Finding the Fourth Proportional to 717,745.80, 1,076,618.73 and 212,267.43

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Solution

The fourth proportional to 717,745.80, 1,076,618.73 and 212,267.43 is: 318,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,745.80 : 1,076,618.73 = 212,267.43 : x
  2. Step 2: Convert to fraction form
    717,745.80/1,076,618.73 = 212,267.43/x
  3. Step 3: Cross multiply
    717,745.80x = 1,076,618.73 × 212,267.43
  4. Step 4: Simplify right side
    717,745.80x = 228,531,090,906.96
  5. Step 5: Solve for x
    x = 228,531,090,906.96/717,745.80
  6. Step 6: Final answer
    x = 318,401.15

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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.