Home / 639,018.35-881,848.31-352,538.36

Finding the Fourth Proportional to 639,018.35, 881,848.31 and 352,538.36

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Solution

The fourth proportional to 639,018.35, 881,848.31 and 352,538.36 is: 486,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,018.35 : 881,848.31 = 352,538.36 : x
  2. Step 2: Convert to fraction form
    639,018.35/881,848.31 = 352,538.36/x
  3. Step 3: Cross multiply
    639,018.35x = 881,848.31 × 352,538.36
  4. Step 4: Simplify right side
    639,018.35x = 310,885,350,804.24
  5. Step 5: Solve for x
    x = 310,885,350,804.24/639,018.35
  6. Step 6: Final answer
    x = 486,504.58

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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.