Home / 811,394.82-1,119,638.70-448,761.06

Finding the Fourth Proportional to 811,394.82, 1,119,638.70 and 448,761.06

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Solution

The fourth proportional to 811,394.82, 1,119,638.70 and 448,761.06 is: 619,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,394.82 : 1,119,638.70 = 448,761.06 : x
  2. Step 2: Convert to fraction form
    811,394.82/1,119,638.70 = 448,761.06/x
  3. Step 3: Cross multiply
    811,394.82x = 1,119,638.70 × 448,761.06
  4. Step 4: Simplify right side
    811,394.82x = 502,450,249,829.02
  5. Step 5: Solve for x
    x = 502,450,249,829.02/811,394.82
  6. Step 6: Final answer
    x = 619,242.61

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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.