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Finding the Fourth Proportional to 606,728.80, 910,020.30 and 251,705.80

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Solution

The fourth proportional to 606,728.80, 910,020.30 and 251,705.80 is: 377,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,728.80 : 910,020.30 = 251,705.80 : x
  2. Step 2: Convert to fraction form
    606,728.80/910,020.30 = 251,705.80/x
  3. Step 3: Cross multiply
    606,728.80x = 910,020.30 × 251,705.80
  4. Step 4: Simplify right side
    606,728.80x = 229,057,387,627.74
  5. Step 5: Solve for x
    x = 229,057,387,627.74/606,728.80
  6. Step 6: Final answer
    x = 377,528.46

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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.