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Finding the Fourth Proportional to 608,172.06, 839,275.35 and 339,900.06

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Solution

The fourth proportional to 608,172.06, 839,275.35 and 339,900.06 is: 469,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,172.06 : 839,275.35 = 339,900.06 : x
  2. Step 2: Convert to fraction form
    608,172.06/839,275.35 = 339,900.06/x
  3. Step 3: Cross multiply
    608,172.06x = 839,275.35 × 339,900.06
  4. Step 4: Simplify right side
    608,172.06x = 285,269,741,821.52
  5. Step 5: Solve for x
    x = 285,269,741,821.52/608,172.06
  6. Step 6: Final answer
    x = 469,060.91

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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.