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Finding the Fourth Proportional to 427,519.72, 589,994.58 and 236,530

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Solution

The fourth proportional to 427,519.72, 589,994.58 and 236,530 is: 326,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,519.72 : 589,994.58 = 236,530 : x
  2. Step 2: Convert to fraction form
    427,519.72/589,994.58 = 236,530/x
  3. Step 3: Cross multiply
    427,519.72x = 589,994.58 × 236,530
  4. Step 4: Simplify right side
    427,519.72x = 139,551,418,007.40
  5. Step 5: Solve for x
    x = 139,551,418,007.40/427,519.72
  6. Step 6: Final answer
    x = 326,421.01

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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.