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Finding the Fourth Proportional to 531,459, 733,442.58 and 305,119.08

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Solution

The fourth proportional to 531,459, 733,442.58 and 305,119.08 is: 421,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,459 : 733,442.58 = 305,119.08 : x
  2. Step 2: Convert to fraction form
    531,459/733,442.58 = 305,119.08/x
  3. Step 3: Cross multiply
    531,459x = 733,442.58 × 305,119.08
  4. Step 4: Simplify right side
    531,459x = 223,787,325,242.43
  5. Step 5: Solve for x
    x = 223,787,325,242.43/531,459
  6. Step 6: Final answer
    x = 421,081.07

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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.