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Finding the Fourth Proportional to 608,661.84, 839,992.22 and 340,389.84

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Solution

The fourth proportional to 608,661.84, 839,992.22 and 340,389.84 is: 469,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,661.84 : 839,992.22 = 340,389.84 : x
  2. Step 2: Convert to fraction form
    608,661.84/839,992.22 = 340,389.84/x
  3. Step 3: Cross multiply
    608,661.84x = 839,992.22 × 340,389.84
  4. Step 4: Simplify right side
    608,661.84x = 285,924,822,006.22
  5. Step 5: Solve for x
    x = 285,924,822,006.22/608,661.84
  6. Step 6: Final answer
    x = 469,759.73

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1.5x scale

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.