Home / 469,905.12-648,469.78-255,045.26

Finding the Fourth Proportional to 469,905.12, 648,469.78 and 255,045.26

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Solution

The fourth proportional to 469,905.12, 648,469.78 and 255,045.26 is: 351,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,905.12 : 648,469.78 = 255,045.26 : x
  2. Step 2: Convert to fraction form
    469,905.12/648,469.78 = 255,045.26/x
  3. Step 3: Cross multiply
    469,905.12x = 648,469.78 × 255,045.26
  4. Step 4: Simplify right side
    469,905.12x = 165,389,144,625.80
  5. Step 5: Solve for x
    x = 165,389,144,625.80/469,905.12
  6. Step 6: Final answer
    x = 351,962.85

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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.