Home / 639,109.35-881,970.23-352,629.41

Finding the Fourth Proportional to 639,109.35, 881,970.23 and 352,629.41

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Solution

The fourth proportional to 639,109.35, 881,970.23 and 352,629.41 is: 486,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,109.35 : 881,970.23 = 352,629.41 : x
  2. Step 2: Convert to fraction form
    639,109.35/881,970.23 = 352,629.41/x
  3. Step 3: Cross multiply
    639,109.35x = 881,970.23 × 352,629.41
  4. Step 4: Simplify right side
    639,109.35x = 311,008,635,669.47
  5. Step 5: Solve for x
    x = 311,008,635,669.47/639,109.35
  6. Step 6: Final answer
    x = 486,628.20

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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.