Home / 505,811.22-698,011.27-276,363.60

Finding the Fourth Proportional to 505,811.22, 698,011.27 and 276,363.60

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Solution

The fourth proportional to 505,811.22, 698,011.27 and 276,363.60 is: 381,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,811.22 : 698,011.27 = 276,363.60 : x
  2. Step 2: Convert to fraction form
    505,811.22/698,011.27 = 276,363.60/x
  3. Step 3: Cross multiply
    505,811.22x = 698,011.27 × 276,363.60
  4. Step 4: Simplify right side
    505,811.22x = 192,904,907,417.77
  5. Step 5: Solve for x
    x = 192,904,907,417.77/505,811.22
  6. Step 6: Final answer
    x = 381,377.28

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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.