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Finding the Fourth Proportional to 768,707.52, 1,060,833.60 and 482,239.68

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Solution

The fourth proportional to 768,707.52, 1,060,833.60 and 482,239.68 is: 665,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,707.52 : 1,060,833.60 = 482,239.68 : x
  2. Step 2: Convert to fraction form
    768,707.52/1,060,833.60 = 482,239.68/x
  3. Step 3: Cross multiply
    768,707.52x = 1,060,833.60 × 482,239.68
  4. Step 4: Simplify right side
    768,707.52x = 511,576,055,797.25
  5. Step 5: Solve for x
    x = 511,576,055,797.25/768,707.52
  6. Step 6: Final answer
    x = 665,501.56

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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.