Home / 1,222,091.72-1,686,108.64-712,433.24

Finding the Fourth Proportional to 1,222,091.72, 1,686,108.64 and 712,433.24

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Solution

The fourth proportional to 1,222,091.72, 1,686,108.64 and 712,433.24 is: 982,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,091.72 : 1,686,108.64 = 712,433.24 : x
  2. Step 2: Convert to fraction form
    1,222,091.72/1,686,108.64 = 712,433.24/x
  3. Step 3: Cross multiply
    1,222,091.72x = 1,686,108.64 × 712,433.24
  4. Step 4: Simplify right side
    1,222,091.72x = 1,201,239,841,387.19
  5. Step 5: Solve for x
    x = 1,201,239,841,387.19/1,222,091.72
  6. Step 6: Final answer
    x = 982,937.55

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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.