Home / 717,745.68-1,076,618.49-212,267.30

Finding the Fourth Proportional to 717,745.68, 1,076,618.49 and 212,267.30

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Solution

The fourth proportional to 717,745.68, 1,076,618.49 and 212,267.30 is: 318,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,745.68 : 1,076,618.49 = 212,267.30 : x
  2. Step 2: Convert to fraction form
    717,745.68/1,076,618.49 = 212,267.30/x
  3. Step 3: Cross multiply
    717,745.68x = 1,076,618.49 × 212,267.30
  4. Step 4: Simplify right side
    717,745.68x = 228,530,894,619.29
  5. Step 5: Solve for x
    x = 228,530,894,619.29/717,745.68
  6. Step 6: Final answer
    x = 318,400.93

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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.