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Finding the Fourth Proportional to 501,322.91, 691,820.90 and 271,885.26

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Solution

The fourth proportional to 501,322.91, 691,820.90 and 271,885.26 is: 375,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,322.91 : 691,820.90 = 271,885.26 : x
  2. Step 2: Convert to fraction form
    501,322.91/691,820.90 = 271,885.26/x
  3. Step 3: Cross multiply
    501,322.91x = 691,820.90 × 271,885.26
  4. Step 4: Simplify right side
    501,322.91x = 188,095,903,910.51
  5. Step 5: Solve for x
    x = 188,095,903,910.51/501,322.91
  6. Step 6: Final answer
    x = 375,199.10

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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.