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Finding the Fourth Proportional to 612,280.80, 844,942.80 and 344,008.80

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Solution

The fourth proportional to 612,280.80, 844,942.80 and 344,008.80 is: 474,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,280.80 : 844,942.80 = 344,008.80 : x
  2. Step 2: Convert to fraction form
    612,280.80/844,942.80 = 344,008.80/x
  3. Step 3: Cross multiply
    612,280.80x = 844,942.80 × 344,008.80
  4. Step 4: Simplify right side
    612,280.80x = 290,667,758,696.64
  5. Step 5: Solve for x
    x = 290,667,758,696.64/612,280.80
  6. Step 6: Final answer
    x = 474,729.50

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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.