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Finding the Fourth Proportional to 619,313.76, 854,451.04 and 361,132.32

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Solution

The fourth proportional to 619,313.76, 854,451.04 and 361,132.32 is: 498,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,313.76 : 854,451.04 = 361,132.32 : x
  2. Step 2: Convert to fraction form
    619,313.76/854,451.04 = 361,132.32/x
  3. Step 3: Cross multiply
    619,313.76x = 854,451.04 × 361,132.32
  4. Step 4: Simplify right side
    619,313.76x = 308,569,886,401.61
  5. Step 5: Solve for x
    x = 308,569,886,401.61/619,313.76
  6. Step 6: Final answer
    x = 498,244.84

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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.