Home / 917,287.80-1,375,931.70-252,439.80

Finding the Fourth Proportional to 917,287.80, 1,375,931.70 and 252,439.80

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Solution

The fourth proportional to 917,287.80, 1,375,931.70 and 252,439.80 is: 378,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,287.80 : 1,375,931.70 = 252,439.80 : x
  2. Step 2: Convert to fraction form
    917,287.80/1,375,931.70 = 252,439.80/x
  3. Step 3: Cross multiply
    917,287.80x = 1,375,931.70 × 252,439.80
  4. Step 4: Simplify right side
    917,287.80x = 347,339,923,161.66
  5. Step 5: Solve for x
    x = 347,339,923,161.66/917,287.80
  6. Step 6: Final answer
    x = 378,659.70

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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.