Home / 1,009,905.20-1,512,816.60-629,658.80

Finding the Fourth Proportional to 1,009,905.20, 1,512,816.60 and 629,658.80

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Solution

The fourth proportional to 1,009,905.20, 1,512,816.60 and 629,658.80 is: 943,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,905.20 : 1,512,816.60 = 629,658.80 : x
  2. Step 2: Convert to fraction form
    1,009,905.20/1,512,816.60 = 629,658.80/x
  3. Step 3: Cross multiply
    1,009,905.20x = 1,512,816.60 × 629,658.80
  4. Step 4: Simplify right side
    1,009,905.20x = 952,558,284,976.08
  5. Step 5: Solve for x
    x = 952,558,284,976.08/1,009,905.20
  6. Step 6: Final answer
    x = 943,215.55

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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.