Home / 459,840.69-689,753.07-206,942.22

Finding the Fourth Proportional to 459,840.69, 689,753.07 and 206,942.22

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Solution

The fourth proportional to 459,840.69, 689,753.07 and 206,942.22 is: 310,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,840.69 : 689,753.07 = 206,942.22 : x
  2. Step 2: Convert to fraction form
    459,840.69/689,753.07 = 206,942.22/x
  3. Step 3: Cross multiply
    459,840.69x = 689,753.07 × 206,942.22
  4. Step 4: Simplify right side
    459,840.69x = 142,739,031,557.62
  5. Step 5: Solve for x
    x = 142,739,031,557.62/459,840.69
  6. Step 6: Final answer
    x = 310,409.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.