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Finding the Fourth Proportional to 489,095.75, 674,959.04 and 295,476.54

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Solution

The fourth proportional to 489,095.75, 674,959.04 and 295,476.54 is: 407,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,095.75 : 674,959.04 = 295,476.54 : x
  2. Step 2: Convert to fraction form
    489,095.75/674,959.04 = 295,476.54/x
  3. Step 3: Cross multiply
    489,095.75x = 674,959.04 × 295,476.54
  4. Step 4: Simplify right side
    489,095.75x = 199,434,560,303.54
  5. Step 5: Solve for x
    x = 199,434,560,303.54/489,095.75
  6. Step 6: Final answer
    x = 407,761.80

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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.