Home / 1,182,735.32-1,632,175.36-638,871.09

Finding the Fourth Proportional to 1,182,735.32, 1,632,175.36 and 638,871.09

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Solution

The fourth proportional to 1,182,735.32, 1,632,175.36 and 638,871.09 is: 881,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,735.32 : 1,632,175.36 = 638,871.09 : x
  2. Step 2: Convert to fraction form
    1,182,735.32/1,632,175.36 = 638,871.09/x
  3. Step 3: Cross multiply
    1,182,735.32x = 1,632,175.36 × 638,871.09
  4. Step 4: Simplify right side
    1,182,735.32x = 1,042,749,651,314.34
  5. Step 5: Solve for x
    x = 1,042,749,651,314.34/1,182,735.32
  6. Step 6: Final answer
    x = 881,642.44

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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.