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Finding the Fourth Proportional to 571,830.82, 789,124 and 326,811.49

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Solution

The fourth proportional to 571,830.82, 789,124 and 326,811.49 is: 450,998.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,830.82 : 789,124 = 326,811.49 : x
  2. Step 2: Convert to fraction form
    571,830.82/789,124 = 326,811.49/x
  3. Step 3: Cross multiply
    571,830.82x = 789,124 × 326,811.49
  4. Step 4: Simplify right side
    571,830.82x = 257,894,790,234.76
  5. Step 5: Solve for x
    x = 257,894,790,234.76/571,830.82
  6. Step 6: Final answer
    x = 450,998.41

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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.