Home / 1,261,857.50-1,891,853.13-763,110.62

Finding the Fourth Proportional to 1,261,857.50, 1,891,853.13 and 763,110.62

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Solution

The fourth proportional to 1,261,857.50, 1,891,853.13 and 763,110.62 is: 1,144,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,857.50 : 1,891,853.13 = 763,110.62 : x
  2. Step 2: Convert to fraction form
    1,261,857.50/1,891,853.13 = 763,110.62/x
  3. Step 3: Cross multiply
    1,261,857.50x = 1,891,853.13 × 763,110.62
  4. Step 4: Simplify right side
    1,261,857.50x = 1,443,693,214,983.24
  5. Step 5: Solve for x
    x = 1,443,693,214,983.24/1,261,857.50
  6. Step 6: Final answer
    x = 1,144,101.62

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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.