Home / 1,222,125-1,686,532.52-685,581

Finding the Fourth Proportional to 1,222,125, 1,686,532.52 and 685,581

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Solution

The fourth proportional to 1,222,125, 1,686,532.52 and 685,581 is: 946,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,125 : 1,686,532.52 = 685,581 : x
  2. Step 2: Convert to fraction form
    1,222,125/1,686,532.52 = 685,581/x
  3. Step 3: Cross multiply
    1,222,125x = 1,686,532.52 × 685,581
  4. Step 4: Simplify right side
    1,222,125x = 1,156,254,651,594.12
  5. Step 5: Solve for x
    x = 1,156,254,651,594.12/1,222,125
  6. Step 6: Final answer
    x = 946,101.79

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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.