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Finding the Fourth Proportional to 489,213.90, 733,820.85 and 414,564.30

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Solution

The fourth proportional to 489,213.90, 733,820.85 and 414,564.30 is: 621,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,213.90 : 733,820.85 = 414,564.30 : x
  2. Step 2: Convert to fraction form
    489,213.90/733,820.85 = 414,564.30/x
  3. Step 3: Cross multiply
    489,213.90x = 733,820.85 × 414,564.30
  4. Step 4: Simplify right side
    489,213.90x = 304,215,927,005.66
  5. Step 5: Solve for x
    x = 304,215,927,005.66/489,213.90
  6. Step 6: Final answer
    x = 621,846.45

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Similar ratio
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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.