Home / 839,886.12-1,260,083.52-300,071.70

Finding the Fourth Proportional to 839,886.12, 1,260,083.52 and 300,071.70

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Solution

The fourth proportional to 839,886.12, 1,260,083.52 and 300,071.70 is: 450,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,886.12 : 1,260,083.52 = 300,071.70 : x
  2. Step 2: Convert to fraction form
    839,886.12/1,260,083.52 = 300,071.70/x
  3. Step 3: Cross multiply
    839,886.12x = 1,260,083.52 × 300,071.70
  4. Step 4: Simplify right side
    839,886.12x = 378,115,403,988.38
  5. Step 5: Solve for x
    x = 378,115,403,988.38/839,886.12
  6. Step 6: Final answer
    x = 450,198.42

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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.