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Finding the Fourth Proportional to 636,441.24, 878,303.98 and 349,961.10

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Solution

The fourth proportional to 636,441.24, 878,303.98 and 349,961.10 is: 482,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,441.24 : 878,303.98 = 349,961.10 : x
  2. Step 2: Convert to fraction form
    636,441.24/878,303.98 = 349,961.10/x
  3. Step 3: Cross multiply
    636,441.24x = 878,303.98 × 349,961.10
  4. Step 4: Simplify right side
    636,441.24x = 307,372,226,975.18
  5. Step 5: Solve for x
    x = 307,372,226,975.18/636,441.24
  6. Step 6: Final answer
    x = 482,954.60

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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.