Home / 1,182,735.70-1,632,175.88-638,871.47

Finding the Fourth Proportional to 1,182,735.70, 1,632,175.88 and 638,871.47

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Solution

The fourth proportional to 1,182,735.70, 1,632,175.88 and 638,871.47 is: 881,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,735.70 : 1,632,175.88 = 638,871.47 : x
  2. Step 2: Convert to fraction form
    1,182,735.70/1,632,175.88 = 638,871.47/x
  3. Step 3: Cross multiply
    1,182,735.70x = 1,632,175.88 × 638,871.47
  4. Step 4: Simplify right side
    1,182,735.70x = 1,042,750,605,351.32
  5. Step 5: Solve for x
    x = 1,042,750,605,351.32/1,182,735.70
  6. Step 6: Final answer
    x = 881,642.97

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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.