Home / 1,179,988.38-1,769,992.80-381,270

Finding the Fourth Proportional to 1,179,988.38, 1,769,992.80 and 381,270

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Solution

The fourth proportional to 1,179,988.38, 1,769,992.80 and 381,270 is: 571,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,988.38 : 1,769,992.80 = 381,270 : x
  2. Step 2: Convert to fraction form
    1,179,988.38/1,769,992.80 = 381,270/x
  3. Step 3: Cross multiply
    1,179,988.38x = 1,769,992.80 × 381,270
  4. Step 4: Simplify right side
    1,179,988.38x = 674,845,154,856
  5. Step 5: Solve for x
    x = 674,845,154,856/1,179,988.38
  6. Step 6: Final answer
    x = 571,908.31

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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.