Home / 1,201,864.52-1,658,665.15-685,629.78

Finding the Fourth Proportional to 1,201,864.52, 1,658,665.15 and 685,629.78

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Solution

The fourth proportional to 1,201,864.52, 1,658,665.15 and 685,629.78 is: 946,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,864.52 : 1,658,665.15 = 685,629.78 : x
  2. Step 2: Convert to fraction form
    1,201,864.52/1,658,665.15 = 685,629.78/x
  3. Step 3: Cross multiply
    1,201,864.52x = 1,658,665.15 × 685,629.78
  4. Step 4: Simplify right side
    1,201,864.52x = 1,137,230,221,888.17
  5. Step 5: Solve for x
    x = 1,137,230,221,888.17/1,201,864.52
  6. Step 6: Final answer
    x = 946,221.64

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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.