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Finding the Fourth Proportional to 608,172.56, 839,276.04 and 339,900.56

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Solution

The fourth proportional to 608,172.56, 839,276.04 and 339,900.56 is: 469,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,172.56 : 839,276.04 = 339,900.56 : x
  2. Step 2: Convert to fraction form
    608,172.56/839,276.04 = 339,900.56/x
  3. Step 3: Cross multiply
    608,172.56x = 839,276.04 × 339,900.56
  4. Step 4: Simplify right side
    608,172.56x = 285,270,395,990.58
  5. Step 5: Solve for x
    x = 285,270,395,990.58/608,172.56
  6. Step 6: Final answer
    x = 469,061.60

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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.