Home / 1,100,921.02-1,519,273.77-642,350.86

Finding the Fourth Proportional to 1,100,921.02, 1,519,273.77 and 642,350.86

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Solution

The fourth proportional to 1,100,921.02, 1,519,273.77 and 642,350.86 is: 886,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,921.02 : 1,519,273.77 = 642,350.86 : x
  2. Step 2: Convert to fraction form
    1,100,921.02/1,519,273.77 = 642,350.86/x
  3. Step 3: Cross multiply
    1,100,921.02x = 1,519,273.77 × 642,350.86
  4. Step 4: Simplify right side
    1,100,921.02x = 975,906,806,527.94
  5. Step 5: Solve for x
    x = 975,906,806,527.94/1,100,921.02
  6. Step 6: Final answer
    x = 886,445.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.