Home / 717,767.28-1,076,650.78-212,288.86

Finding the Fourth Proportional to 717,767.28, 1,076,650.78 and 212,288.86

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Solution

The fourth proportional to 717,767.28, 1,076,650.78 and 212,288.86 is: 318,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,767.28 : 1,076,650.78 = 212,288.86 : x
  2. Step 2: Convert to fraction form
    717,767.28/1,076,650.78 = 212,288.86/x
  3. Step 3: Cross multiply
    717,767.28x = 1,076,650.78 × 212,288.86
  4. Step 4: Simplify right side
    717,767.28x = 228,560,966,704.31
  5. Step 5: Solve for x
    x = 228,560,966,704.31/717,767.28
  6. Step 6: Final answer
    x = 318,433.25

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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.