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Finding the Fourth Proportional to 489,127.74, 675,052.50 and 325,775.22

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Solution

The fourth proportional to 489,127.74, 675,052.50 and 325,775.22 is: 449,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,127.74 : 675,052.50 = 325,775.22 : x
  2. Step 2: Convert to fraction form
    489,127.74/675,052.50 = 325,775.22/x
  3. Step 3: Cross multiply
    489,127.74x = 675,052.50 × 325,775.22
  4. Step 4: Simplify right side
    489,127.74x = 219,915,376,699.05
  5. Step 5: Solve for x
    x = 219,915,376,699.05/489,127.74
  6. Step 6: Final answer
    x = 449,607.25

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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.