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Finding the Fourth Proportional to 606,965.70, 909,719.55 and 251,796.90

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Solution

The fourth proportional to 606,965.70, 909,719.55 and 251,796.90 is: 377,392.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,965.70 : 909,719.55 = 251,796.90 : x
  2. Step 2: Convert to fraction form
    606,965.70/909,719.55 = 251,796.90/x
  3. Step 3: Cross multiply
    606,965.70x = 909,719.55 × 251,796.90
  4. Step 4: Simplify right side
    606,965.70x = 229,064,562,559.40
  5. Step 5: Solve for x
    x = 229,064,562,559.40/606,965.70
  6. Step 6: Final answer
    x = 377,392.93

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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.