Home / 717,445.60-1,076,310.24-212,015.68

Finding the Fourth Proportional to 717,445.60, 1,076,310.24 and 212,015.68

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Solution

The fourth proportional to 717,445.60, 1,076,310.24 and 212,015.68 is: 318,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,445.60 : 1,076,310.24 = 212,015.68 : x
  2. Step 2: Convert to fraction form
    717,445.60/1,076,310.24 = 212,015.68/x
  3. Step 3: Cross multiply
    717,445.60x = 1,076,310.24 × 212,015.68
  4. Step 4: Simplify right side
    717,445.60x = 228,194,647,424.56
  5. Step 5: Solve for x
    x = 228,194,647,424.56/717,445.60
  6. Step 6: Final answer
    x = 318,065.44

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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.