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Finding the Fourth Proportional to 576,130.75, 795,060.51 and 318,007.79

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Solution

The fourth proportional to 576,130.75, 795,060.51 and 318,007.79 is: 438,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,130.75 : 795,060.51 = 318,007.79 : x
  2. Step 2: Convert to fraction form
    576,130.75/795,060.51 = 318,007.79/x
  3. Step 3: Cross multiply
    576,130.75x = 795,060.51 × 318,007.79
  4. Step 4: Simplify right side
    576,130.75x = 252,835,430,136.03
  5. Step 5: Solve for x
    x = 252,835,430,136.03/576,130.75
  6. Step 6: Final answer
    x = 438,850.78

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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.