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Finding the Fourth Proportional to 427,069.71, 589,381.62 and 245,777.67

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Solution

The fourth proportional to 427,069.71, 589,381.62 and 245,777.67 is: 339,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,069.71 : 589,381.62 = 245,777.67 : x
  2. Step 2: Convert to fraction form
    427,069.71/589,381.62 = 245,777.67/x
  3. Step 3: Cross multiply
    427,069.71x = 589,381.62 × 245,777.67
  4. Step 4: Simplify right side
    427,069.71x = 144,856,841,304.43
  5. Step 5: Solve for x
    x = 144,856,841,304.43/427,069.71
  6. Step 6: Final answer
    x = 339,187.81

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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.