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Finding the Fourth Proportional to 379,477.70, 568,525.35 and 308,975.30

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Solution

The fourth proportional to 379,477.70, 568,525.35 and 308,975.30 is: 462,900.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,477.70 : 568,525.35 = 308,975.30 : x
  2. Step 2: Convert to fraction form
    379,477.70/568,525.35 = 308,975.30/x
  3. Step 3: Cross multiply
    379,477.70x = 568,525.35 × 308,975.30
  4. Step 4: Simplify right side
    379,477.70x = 175,660,290,573.86
  5. Step 5: Solve for x
    x = 175,660,290,573.86/379,477.70
  6. Step 6: Final answer
    x = 462,900.17

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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.