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Finding the Fourth Proportional to 483,255.80, 666,871.38 and 289,770.32

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Solution

The fourth proportional to 483,255.80, 666,871.38 and 289,770.32 is: 399,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,255.80 : 666,871.38 = 289,770.32 : x
  2. Step 2: Convert to fraction form
    483,255.80/666,871.38 = 289,770.32/x
  3. Step 3: Cross multiply
    483,255.80x = 666,871.38 × 289,770.32
  4. Step 4: Simplify right side
    483,255.80x = 193,239,533,181.44
  5. Step 5: Solve for x
    x = 193,239,533,181.44/483,255.80
  6. Step 6: Final answer
    x = 399,870.08

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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.