Home / 904,726.80-1,355,121.90-727,579.80

Finding the Fourth Proportional to 904,726.80, 1,355,121.90 and 727,579.80

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Solution

The fourth proportional to 904,726.80, 1,355,121.90 and 727,579.80 is: 1,089,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,726.80 : 1,355,121.90 = 727,579.80 : x
  2. Step 2: Convert to fraction form
    904,726.80/1,355,121.90 = 727,579.80/x
  3. Step 3: Cross multiply
    904,726.80x = 1,355,121.90 × 727,579.80
  4. Step 4: Simplify right side
    904,726.80x = 985,959,320,977.62
  5. Step 5: Solve for x
    x = 985,959,320,977.62/904,726.80
  6. Step 6: Final answer
    x = 1,089,786.80

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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.