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Finding the Fourth Proportional to 562,727.82, 776,638.35 and 320,954.97

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Solution

The fourth proportional to 562,727.82, 776,638.35 and 320,954.97 is: 442,960.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,727.82 : 776,638.35 = 320,954.97 : x
  2. Step 2: Convert to fraction form
    562,727.82/776,638.35 = 320,954.97/x
  3. Step 3: Cross multiply
    562,727.82x = 776,638.35 × 320,954.97
  4. Step 4: Simplify right side
    562,727.82x = 249,265,936,720.33
  5. Step 5: Solve for x
    x = 249,265,936,720.33/562,727.82
  6. Step 6: Final answer
    x = 442,960.04

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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.