Home / 917,276.60-1,375,914.90-492,123.80

Finding the Fourth Proportional to 917,276.60, 1,375,914.90 and 492,123.80

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Solution

The fourth proportional to 917,276.60, 1,375,914.90 and 492,123.80 is: 738,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,276.60 : 1,375,914.90 = 492,123.80 : x
  2. Step 2: Convert to fraction form
    917,276.60/1,375,914.90 = 492,123.80/x
  3. Step 3: Cross multiply
    917,276.60x = 1,375,914.90 × 492,123.80
  4. Step 4: Simplify right side
    917,276.60x = 677,120,469,064.62
  5. Step 5: Solve for x
    x = 677,120,469,064.62/917,276.60
  6. Step 6: Final answer
    x = 738,185.70

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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.