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Finding the Fourth Proportional to 608,331.80, 839,466.78 and 340,059.80

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Solution

The fourth proportional to 608,331.80, 839,466.78 and 340,059.80 is: 469,265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,331.80 : 839,466.78 = 340,059.80 : x
  2. Step 2: Convert to fraction form
    608,331.80/839,466.78 = 340,059.80/x
  3. Step 3: Cross multiply
    608,331.80x = 839,466.78 × 340,059.80
  4. Step 4: Simplify right side
    608,331.80x = 285,468,905,313.44
  5. Step 5: Solve for x
    x = 285,468,905,313.44/608,331.80
  6. Step 6: Final answer
    x = 469,265.14

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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.