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Finding the Fourth Proportional to 808,084, 1,212,301 and 309,448

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Solution

The fourth proportional to 808,084, 1,212,301 and 309,448 is: 464,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,084 : 1,212,301 = 309,448 : x
  2. Step 2: Convert to fraction form
    808,084/1,212,301 = 309,448/x
  3. Step 3: Cross multiply
    808,084x = 1,212,301 × 309,448
  4. Step 4: Simplify right side
    808,084x = 375,144,119,848
  5. Step 5: Solve for x
    x = 375,144,119,848/808,084
  6. Step 6: Final answer
    x = 464,239.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.