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Finding the Fourth Proportional to 626,540.34, 939,659.97 and 289,256.94

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Solution

The fourth proportional to 626,540.34, 939,659.97 and 289,256.94 is: 433,815.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,540.34 : 939,659.97 = 289,256.94 : x
  2. Step 2: Convert to fraction form
    626,540.34/939,659.97 = 289,256.94/x
  3. Step 3: Cross multiply
    626,540.34x = 939,659.97 × 289,256.94
  4. Step 4: Simplify right side
    626,540.34x = 271,803,171,086.42
  5. Step 5: Solve for x
    x = 271,803,171,086.42/626,540.34
  6. Step 6: Final answer
    x = 433,815.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.