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Finding the Fourth Proportional to 349,781.60, 524,672.40 and 279,797.60

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Solution

The fourth proportional to 349,781.60, 524,672.40 and 279,797.60 is: 419,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,781.60 : 524,672.40 = 279,797.60 : x
  2. Step 2: Convert to fraction form
    349,781.60/524,672.40 = 279,797.60/x
  3. Step 3: Cross multiply
    349,781.60x = 524,672.40 × 279,797.60
  4. Step 4: Simplify right side
    349,781.60x = 146,802,078,306.24
  5. Step 5: Solve for x
    x = 146,802,078,306.24/349,781.60
  6. Step 6: Final answer
    x = 419,696.40

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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.