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Finding the Fourth Proportional to 459,609.77, 634,002.45 and 275,800.79

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Solution

The fourth proportional to 459,609.77, 634,002.45 and 275,800.79 is: 380,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,609.77 : 634,002.45 = 275,800.79 : x
  2. Step 2: Convert to fraction form
    459,609.77/634,002.45 = 275,800.79/x
  3. Step 3: Cross multiply
    459,609.77x = 634,002.45 × 275,800.79
  4. Step 4: Simplify right side
    459,609.77x = 174,858,376,571.94
  5. Step 5: Solve for x
    x = 174,858,376,571.94/459,609.77
  6. Step 6: Final answer
    x = 380,449.65

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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.