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Finding the Fourth Proportional to 482,717.21, 666,279 and 301,319.93

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Solution

The fourth proportional to 482,717.21, 666,279 and 301,319.93 is: 415,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,717.21 : 666,279 = 301,319.93 : x
  2. Step 2: Convert to fraction form
    482,717.21/666,279 = 301,319.93/x
  3. Step 3: Cross multiply
    482,717.21x = 666,279 × 301,319.93
  4. Step 4: Simplify right side
    482,717.21x = 200,763,143,306.17
  5. Step 5: Solve for x
    x = 200,763,143,306.17/482,717.21
  6. Step 6: Final answer
    x = 415,902.19

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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.