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Finding the Fourth Proportional to 608,627.69, 839,930.94 and 336,690.89

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Solution

The fourth proportional to 608,627.69, 839,930.94 and 336,690.89 is: 464,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,627.69 : 839,930.94 = 336,690.89 : x
  2. Step 2: Convert to fraction form
    608,627.69/839,930.94 = 336,690.89/x
  3. Step 3: Cross multiply
    608,627.69x = 839,930.94 × 336,690.89
  4. Step 4: Simplify right side
    608,627.69x = 282,797,095,727.14
  5. Step 5: Solve for x
    x = 282,797,095,727.14/608,627.69
  6. Step 6: Final answer
    x = 464,647.11

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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.