Home / 717,635.70-1,076,079.78-338,454.62

Finding the Fourth Proportional to 717,635.70, 1,076,079.78 and 338,454.62

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Solution

The fourth proportional to 717,635.70, 1,076,079.78 and 338,454.62 is: 507,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,635.70 : 1,076,079.78 = 338,454.62 : x
  2. Step 2: Convert to fraction form
    717,635.70/1,076,079.78 = 338,454.62/x
  3. Step 3: Cross multiply
    717,635.70x = 1,076,079.78 × 338,454.62
  4. Step 4: Simplify right side
    717,635.70x = 364,204,171,684.48
  5. Step 5: Solve for x
    x = 364,204,171,684.48/717,635.70
  6. Step 6: Final answer
    x = 507,505.65

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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.