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Finding the Fourth Proportional to 603,751.65, 905,790.80 and 204,392.45

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Solution

The fourth proportional to 603,751.65, 905,790.80 and 204,392.45 is: 306,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,751.65 : 905,790.80 = 204,392.45 : x
  2. Step 2: Convert to fraction form
    603,751.65/905,790.80 = 204,392.45/x
  3. Step 3: Cross multiply
    603,751.65x = 905,790.80 × 204,392.45
  4. Step 4: Simplify right side
    603,751.65x = 185,136,803,574.92
  5. Step 5: Solve for x
    x = 185,136,803,574.92/603,751.65
  6. Step 6: Final answer
    x = 306,643.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.