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Finding the Fourth Proportional to 608,120.81, 839,206.59 and 332,479.66

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Solution

The fourth proportional to 608,120.81, 839,206.59 and 332,479.66 is: 458,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,120.81 : 839,206.59 = 332,479.66 : x
  2. Step 2: Convert to fraction form
    608,120.81/839,206.59 = 332,479.66/x
  3. Step 3: Cross multiply
    608,120.81x = 839,206.59 × 332,479.66
  4. Step 4: Simplify right side
    608,120.81x = 279,019,117,516.93
  5. Step 5: Solve for x
    x = 279,019,117,516.93/608,120.81
  6. Step 6: Final answer
    x = 458,821.85

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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.