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Finding the Fourth Proportional to 626,474.34, 939,672.63 and 271,240.74

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Solution

The fourth proportional to 626,474.34, 939,672.63 and 271,240.74 is: 406,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,474.34 : 939,672.63 = 271,240.74 : x
  2. Step 2: Convert to fraction form
    626,474.34/939,672.63 = 271,240.74/x
  3. Step 3: Cross multiply
    626,474.34x = 939,672.63 × 271,240.74
  4. Step 4: Simplify right side
    626,474.34x = 254,877,499,518.95
  5. Step 5: Solve for x
    x = 254,877,499,518.95/626,474.34
  6. Step 6: Final answer
    x = 406,844.28

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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.