Home / 717,711.80-1,076,796.32-212,275.85

Finding the Fourth Proportional to 717,711.80, 1,076,796.32 and 212,275.85

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Solution

The fourth proportional to 717,711.80, 1,076,796.32 and 212,275.85 is: 318,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,711.80 : 1,076,796.32 = 212,275.85 : x
  2. Step 2: Convert to fraction form
    717,711.80/1,076,796.32 = 212,275.85/x
  3. Step 3: Cross multiply
    717,711.80x = 1,076,796.32 × 212,275.85
  4. Step 4: Simplify right side
    717,711.80x = 228,577,847,659.51
  5. Step 5: Solve for x
    x = 228,577,847,659.51/717,711.80
  6. Step 6: Final answer
    x = 318,481.39

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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.