Home / 1,091,222.03-1,505,962.09-661,520.27

Finding the Fourth Proportional to 1,091,222.03, 1,505,962.09 and 661,520.27

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Solution

The fourth proportional to 1,091,222.03, 1,505,962.09 and 661,520.27 is: 912,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,222.03 : 1,505,962.09 = 661,520.27 : x
  2. Step 2: Convert to fraction form
    1,091,222.03/1,505,962.09 = 661,520.27/x
  3. Step 3: Cross multiply
    1,091,222.03x = 1,505,962.09 × 661,520.27
  4. Step 4: Simplify right side
    1,091,222.03x = 996,224,452,978.37
  5. Step 5: Solve for x
    x = 996,224,452,978.37/1,091,222.03
  6. Step 6: Final answer
    x = 912,943.86

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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.