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Finding the Fourth Proportional to 504,164.40, 755,533.80 and 279,623.76

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Solution

The fourth proportional to 504,164.40, 755,533.80 and 279,623.76 is: 419,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,164.40 : 755,533.80 = 279,623.76 : x
  2. Step 2: Convert to fraction form
    504,164.40/755,533.80 = 279,623.76/x
  3. Step 3: Cross multiply
    504,164.40x = 755,533.80 × 279,623.76
  4. Step 4: Simplify right side
    504,164.40x = 211,265,201,963.09
  5. Step 5: Solve for x
    x = 211,265,201,963.09/504,164.40
  6. Step 6: Final answer
    x = 419,040.30

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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.