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Finding the Fourth Proportional to 520,051.40, 779,846.70 and 239,654.60

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Solution

The fourth proportional to 520,051.40, 779,846.70 and 239,654.60 is: 359,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,051.40 : 779,846.70 = 239,654.60 : x
  2. Step 2: Convert to fraction form
    520,051.40/779,846.70 = 239,654.60/x
  3. Step 3: Cross multiply
    520,051.40x = 779,846.70 × 239,654.60
  4. Step 4: Simplify right side
    520,051.40x = 186,893,848,949.82
  5. Step 5: Solve for x
    x = 186,893,848,949.82/520,051.40
  6. Step 6: Final answer
    x = 359,375.73

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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.