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Finding the Fourth Proportional to 504,883.71, 696,739.48 and 278,529.21

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Solution

The fourth proportional to 504,883.71, 696,739.48 and 278,529.21 is: 384,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,883.71 : 696,739.48 = 278,529.21 : x
  2. Step 2: Convert to fraction form
    504,883.71/696,739.48 = 278,529.21/x
  3. Step 3: Cross multiply
    504,883.71x = 696,739.48 × 278,529.21
  4. Step 4: Simplify right side
    504,883.71x = 194,062,296,243.89
  5. Step 5: Solve for x
    x = 194,062,296,243.89/504,883.71
  6. Step 6: Final answer
    x = 384,370.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.