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Finding the Fourth Proportional to 505,798.88, 697,994.28 and 276,351.26

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Solution

The fourth proportional to 505,798.88, 697,994.28 and 276,351.26 is: 381,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,798.88 : 697,994.28 = 276,351.26 : x
  2. Step 2: Convert to fraction form
    505,798.88/697,994.28 = 276,351.26/x
  3. Step 3: Cross multiply
    505,798.88x = 697,994.28 × 276,351.26
  4. Step 4: Simplify right side
    505,798.88x = 192,891,595,260.82
  5. Step 5: Solve for x
    x = 192,891,595,260.82/505,798.88
  6. Step 6: Final answer
    x = 381,360.27

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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.