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Finding the Fourth Proportional to 521,401.36, 719,549.04 and 295,042

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Solution

The fourth proportional to 521,401.36, 719,549.04 and 295,042 is: 407,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,401.36 : 719,549.04 = 295,042 : x
  2. Step 2: Convert to fraction form
    521,401.36/719,549.04 = 295,042/x
  3. Step 3: Cross multiply
    521,401.36x = 719,549.04 × 295,042
  4. Step 4: Simplify right side
    521,401.36x = 212,297,187,859.68
  5. Step 5: Solve for x
    x = 212,297,187,859.68/521,401.36
  6. Step 6: Final answer
    x = 407,166.54

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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.