Home / 505,869.17-698,091.02-276,421.42

Finding the Fourth Proportional to 505,869.17, 698,091.02 and 276,421.42

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Solution

The fourth proportional to 505,869.17, 698,091.02 and 276,421.42 is: 381,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,869.17 : 698,091.02 = 276,421.42 : x
  2. Step 2: Convert to fraction form
    505,869.17/698,091.02 = 276,421.42/x
  3. Step 3: Cross multiply
    505,869.17x = 698,091.02 × 276,421.42
  4. Step 4: Simplify right side
    505,869.17x = 192,967,311,037.65
  5. Step 5: Solve for x
    x = 192,967,311,037.65/505,869.17
  6. Step 6: Final answer
    x = 381,456.95

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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.