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Finding the Fourth Proportional to 531,370.44, 733,276.53 and 289,657.71

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Solution

The fourth proportional to 531,370.44, 733,276.53 and 289,657.71 is: 399,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,370.44 : 733,276.53 = 289,657.71 : x
  2. Step 2: Convert to fraction form
    531,370.44/733,276.53 = 289,657.71/x
  3. Step 3: Cross multiply
    531,370.44x = 733,276.53 × 289,657.71
  4. Step 4: Simplify right side
    531,370.44x = 212,399,200,476.55
  5. Step 5: Solve for x
    x = 212,399,200,476.55/531,370.44
  6. Step 6: Final answer
    x = 399,719.64

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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.