Home / 639,015.35-881,844.17-352,535.36

Finding the Fourth Proportional to 639,015.35, 881,844.17 and 352,535.36

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Solution

The fourth proportional to 639,015.35, 881,844.17 and 352,535.36 is: 486,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,015.35 : 881,844.17 = 352,535.36 : x
  2. Step 2: Convert to fraction form
    639,015.35/881,844.17 = 352,535.36/x
  3. Step 3: Cross multiply
    639,015.35x = 881,844.17 × 352,535.36
  4. Step 4: Simplify right side
    639,015.35x = 310,881,245,762.95
  5. Step 5: Solve for x
    x = 310,881,245,762.95/639,015.35
  6. Step 6: Final answer
    x = 486,500.44

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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.