Home / 717,766.28-1,076,649.28-212,287.86

Finding the Fourth Proportional to 717,766.28, 1,076,649.28 and 212,287.86

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Solution

The fourth proportional to 717,766.28, 1,076,649.28 and 212,287.86 is: 318,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,766.28 : 1,076,649.28 = 212,287.86 : x
  2. Step 2: Convert to fraction form
    717,766.28/1,076,649.28 = 212,287.86/x
  3. Step 3: Cross multiply
    717,766.28x = 1,076,649.28 × 212,287.86
  4. Step 4: Simplify right side
    717,766.28x = 228,559,571,621.74
  5. Step 5: Solve for x
    x = 228,559,571,621.74/717,766.28
  6. Step 6: Final answer
    x = 318,431.75

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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.