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Finding the Fourth Proportional to 505,859.07, 759,314.16 and 338,548.56

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Solution

The fourth proportional to 505,859.07, 759,314.16 and 338,548.56 is: 508,174.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,859.07 : 759,314.16 = 338,548.56 : x
  2. Step 2: Convert to fraction form
    505,859.07/759,314.16 = 338,548.56/x
  3. Step 3: Cross multiply
    505,859.07x = 759,314.16 × 338,548.56
  4. Step 4: Simplify right side
    505,859.07x = 257,064,715,455.61
  5. Step 5: Solve for x
    x = 257,064,715,455.61/505,859.07
  6. Step 6: Final answer
    x = 508,174.57

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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.