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Finding the Fourth Proportional to 440,843.40, 608,369.94 and 239,643.72

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Solution

The fourth proportional to 440,843.40, 608,369.94 and 239,643.72 is: 330,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,843.40 : 608,369.94 = 239,643.72 : x
  2. Step 2: Convert to fraction form
    440,843.40/608,369.94 = 239,643.72/x
  3. Step 3: Cross multiply
    440,843.40x = 608,369.94 × 239,643.72
  4. Step 4: Simplify right side
    440,843.40x = 145,792,035,557.78
  5. Step 5: Solve for x
    x = 145,792,035,557.78/440,843.40
  6. Step 6: Final answer
    x = 330,711.62

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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.