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Finding the Fourth Proportional to 531,672.66, 733,667.49 and 305,391.06

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Solution

The fourth proportional to 531,672.66, 733,667.49 and 305,391.06 is: 421,416.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,672.66 : 733,667.49 = 305,391.06 : x
  2. Step 2: Convert to fraction form
    531,672.66/733,667.49 = 305,391.06/x
  3. Step 3: Cross multiply
    531,672.66x = 733,667.49 × 305,391.06
  4. Step 4: Simplify right side
    531,672.66x = 224,055,492,458.64
  5. Step 5: Solve for x
    x = 224,055,492,458.64/531,672.66
  6. Step 6: Final answer
    x = 421,416.24

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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.