Home / 345,619.58-518,484.04-120,974.58

Finding the Fourth Proportional to 345,619.58, 518,484.04 and 120,974.58

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Solution

The fourth proportional to 345,619.58, 518,484.04 and 120,974.58 is: 181,481.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,619.58 : 518,484.04 = 120,974.58 : x
  2. Step 2: Convert to fraction form
    345,619.58/518,484.04 = 120,974.58/x
  3. Step 3: Cross multiply
    345,619.58x = 518,484.04 × 120,974.58
  4. Step 4: Simplify right side
    345,619.58x = 62,723,388,673.27
  5. Step 5: Solve for x
    x = 62,723,388,673.27/345,619.58
  6. Step 6: Final answer
    x = 181,481.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.