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Finding the Fourth Proportional to 608,290.57, 839,432.21 and 336,352.49

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Solution

The fourth proportional to 608,290.57, 839,432.21 and 336,352.49 is: 464,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,290.57 : 839,432.21 = 336,352.49 : x
  2. Step 2: Convert to fraction form
    608,290.57/839,432.21 = 336,352.49/x
  3. Step 3: Cross multiply
    608,290.57x = 839,432.21 × 336,352.49
  4. Step 4: Simplify right side
    608,290.57x = 282,345,114,019.70
  5. Step 5: Solve for x
    x = 282,345,114,019.70/608,290.57
  6. Step 6: Final answer
    x = 464,161.58

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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.