Home / 639,091.48-881,949.06-352,611.40

Finding the Fourth Proportional to 639,091.48, 881,949.06 and 352,611.40

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Solution

The fourth proportional to 639,091.48, 881,949.06 and 352,611.40 is: 486,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,091.48 : 881,949.06 = 352,611.40 : x
  2. Step 2: Convert to fraction form
    639,091.48/881,949.06 = 352,611.40/x
  3. Step 3: Cross multiply
    639,091.48x = 881,949.06 × 352,611.40
  4. Step 4: Simplify right side
    639,091.48x = 310,985,292,775.28
  5. Step 5: Solve for x
    x = 310,985,292,775.28/639,091.48
  6. Step 6: Final answer
    x = 486,605.29

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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.