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Finding the Fourth Proportional to 505,089.09, 697,037.62 and 275,661.11

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Solution

The fourth proportional to 505,089.09, 697,037.62 and 275,661.11 is: 380,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,089.09 : 697,037.62 = 275,661.11 : x
  2. Step 2: Convert to fraction form
    505,089.09/697,037.62 = 275,661.11/x
  3. Step 3: Cross multiply
    505,089.09x = 697,037.62 × 275,661.11
  4. Step 4: Simplify right side
    505,089.09x = 192,146,162,987.52
  5. Step 5: Solve for x
    x = 192,146,162,987.52/505,089.09
  6. Step 6: Final answer
    x = 380,420.34

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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.