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Finding the Fourth Proportional to 482,465.34, 665,832.38 and 278,553.65

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Solution

The fourth proportional to 482,465.34, 665,832.38 and 278,553.65 is: 384,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,465.34 : 665,832.38 = 278,553.65 : x
  2. Step 2: Convert to fraction form
    482,465.34/665,832.38 = 278,553.65/x
  3. Step 3: Cross multiply
    482,465.34x = 665,832.38 × 278,553.65
  4. Step 4: Simplify right side
    482,465.34x = 185,470,035,015.26
  5. Step 5: Solve for x
    x = 185,470,035,015.26/482,465.34
  6. Step 6: Final answer
    x = 384,421.47

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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.