Home / 505,811.45-698,011.63-276,363.83

Finding the Fourth Proportional to 505,811.45, 698,011.63 and 276,363.83

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Solution

The fourth proportional to 505,811.45, 698,011.63 and 276,363.83 is: 381,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,811.45 : 698,011.63 = 276,363.83 : x
  2. Step 2: Convert to fraction form
    505,811.45/698,011.63 = 276,363.83/x
  3. Step 3: Cross multiply
    505,811.45x = 698,011.63 × 276,363.83
  4. Step 4: Simplify right side
    505,811.45x = 192,905,168,505.46
  5. Step 5: Solve for x
    x = 192,905,168,505.46/505,811.45
  6. Step 6: Final answer
    x = 381,377.62

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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.