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Finding the Fourth Proportional to 483,528.58, 667,242.26 and 289,839.36

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Solution

The fourth proportional to 483,528.58, 667,242.26 and 289,839.36 is: 399,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,528.58 : 667,242.26 = 289,839.36 : x
  2. Step 2: Convert to fraction form
    483,528.58/667,242.26 = 289,839.36/x
  3. Step 3: Cross multiply
    483,528.58x = 667,242.26 × 289,839.36
  4. Step 4: Simplify right side
    483,528.58x = 193,393,069,603.35
  5. Step 5: Solve for x
    x = 193,393,069,603.35/483,528.58
  6. Step 6: Final answer
    x = 399,962.02

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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.