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Finding the Fourth Proportional to 531,352.58, 733,274.26 and 289,635.21

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Solution

The fourth proportional to 531,352.58, 733,274.26 and 289,635.21 is: 399,700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,352.58 : 733,274.26 = 289,635.21 : x
  2. Step 2: Convert to fraction form
    531,352.58/733,274.26 = 289,635.21/x
  3. Step 3: Cross multiply
    531,352.58x = 733,274.26 × 289,635.21
  4. Step 4: Simplify right side
    531,352.58x = 212,382,043,558.61
  5. Step 5: Solve for x
    x = 212,382,043,558.61/531,352.58
  6. Step 6: Final answer
    x = 399,700.79

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1.5x scale

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.