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Finding the Fourth Proportional to 531,361.59, 733,264.38 and 289,648.89

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Solution

The fourth proportional to 531,361.59, 733,264.38 and 289,648.89 is: 399,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,361.59 : 733,264.38 = 289,648.89 : x
  2. Step 2: Convert to fraction form
    531,361.59/733,264.38 = 289,648.89/x
  3. Step 3: Cross multiply
    531,361.59x = 733,264.38 × 289,648.89
  4. Step 4: Simplify right side
    531,361.59x = 212,389,213,743.54
  5. Step 5: Solve for x
    x = 212,389,213,743.54/531,361.59
  6. Step 6: Final answer
    x = 399,707.50

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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.