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Finding the Fourth Proportional to 608,438.94, 839,651.31 and 336,492.78

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Solution

The fourth proportional to 608,438.94, 839,651.31 and 336,492.78 is: 464,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,438.94 : 839,651.31 = 336,492.78 : x
  2. Step 2: Convert to fraction form
    608,438.94/839,651.31 = 336,492.78/x
  3. Step 3: Cross multiply
    608,438.94x = 839,651.31 × 336,492.78
  4. Step 4: Simplify right side
    608,438.94x = 282,536,603,532.54
  5. Step 5: Solve for x
    x = 282,536,603,532.54/608,438.94
  6. Step 6: Final answer
    x = 464,363.12

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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.