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Finding the Fourth Proportional to 531,376.02, 733,277.25 and 289,653.30

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Solution

The fourth proportional to 531,376.02, 733,277.25 and 289,653.30 is: 399,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,376.02 : 733,277.25 = 289,653.30 : x
  2. Step 2: Convert to fraction form
    531,376.02/733,277.25 = 289,653.30/x
  3. Step 3: Cross multiply
    531,376.02x = 733,277.25 × 289,653.30
  4. Step 4: Simplify right side
    531,376.02x = 212,396,175,277.43
  5. Step 5: Solve for x
    x = 212,396,175,277.43/531,376.02
  6. Step 6: Final answer
    x = 399,709.75

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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.