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Finding the Fourth Proportional to 489,607.19, 733,820.19 and 252,820.79

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Solution

The fourth proportional to 489,607.19, 733,820.19 and 252,820.79 is: 378,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,607.19 : 733,820.19 = 252,820.79 : x
  2. Step 2: Convert to fraction form
    489,607.19/733,820.19 = 252,820.79/x
  3. Step 3: Cross multiply
    489,607.19x = 733,820.19 × 252,820.79
  4. Step 4: Simplify right side
    489,607.19x = 185,525,000,153.75
  5. Step 5: Solve for x
    x = 185,525,000,153.75/489,607.19
  6. Step 6: Final answer
    x = 378,926.22

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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.