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Finding the Fourth Proportional to 606,786.69, 909,915.30 and 322,408.65

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Solution

The fourth proportional to 606,786.69, 909,915.30 and 322,408.65 is: 483,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,786.69 : 909,915.30 = 322,408.65 : x
  2. Step 2: Convert to fraction form
    606,786.69/909,915.30 = 322,408.65/x
  3. Step 3: Cross multiply
    606,786.69x = 909,915.30 × 322,408.65
  4. Step 4: Simplify right side
    606,786.69x = 293,364,563,487.35
  5. Step 5: Solve for x
    x = 293,364,563,487.35/606,786.69
  6. Step 6: Final answer
    x = 483,472.31

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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.