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Finding the Fourth Proportional to 531,878.75, 733,992.68 and 340,892.15

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Solution

The fourth proportional to 531,878.75, 733,992.68 and 340,892.15 is: 470,431.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,878.75 : 733,992.68 = 340,892.15 : x
  2. Step 2: Convert to fraction form
    531,878.75/733,992.68 = 340,892.15/x
  3. Step 3: Cross multiply
    531,878.75x = 733,992.68 × 340,892.15
  4. Step 4: Simplify right side
    531,878.75x = 250,212,337,395.04
  5. Step 5: Solve for x
    x = 250,212,337,395.04/531,878.75
  6. Step 6: Final answer
    x = 470,431.16

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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.