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Finding the Fourth Proportional to 608,322.71, 839,490.78 and 336,408.90

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Solution

The fourth proportional to 608,322.71, 839,490.78 and 336,408.90 is: 464,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,322.71 : 839,490.78 = 336,408.90 : x
  2. Step 2: Convert to fraction form
    608,322.71/839,490.78 = 336,408.90/x
  3. Step 3: Cross multiply
    608,322.71x = 839,490.78 × 336,408.90
  4. Step 4: Simplify right side
    608,322.71x = 282,412,169,859.94
  5. Step 5: Solve for x
    x = 282,412,169,859.94/608,322.71
  6. Step 6: Final answer
    x = 464,247.29

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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.