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Finding the Fourth Proportional to 436,966, 655,484.56 and 121,422.92

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Solution

The fourth proportional to 436,966, 655,484.56 and 121,422.92 is: 182,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,966 : 655,484.56 = 121,422.92 : x
  2. Step 2: Convert to fraction form
    436,966/655,484.56 = 121,422.92/x
  3. Step 3: Cross multiply
    436,966x = 655,484.56 × 121,422.92
  4. Step 4: Simplify right side
    436,966x = 79,590,849,290.12
  5. Step 5: Solve for x
    x = 79,590,849,290.12/436,966
  6. Step 6: Final answer
    x = 182,144.26

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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.