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Finding the Fourth Proportional to 626,115, 939,172.52 and 293,691

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Solution

The fourth proportional to 626,115, 939,172.52 and 293,691 is: 440,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,115 : 939,172.52 = 293,691 : x
  2. Step 2: Convert to fraction form
    626,115/939,172.52 = 293,691/x
  3. Step 3: Cross multiply
    626,115x = 939,172.52 × 293,691
  4. Step 4: Simplify right side
    626,115x = 275,826,516,571.32
  5. Step 5: Solve for x
    x = 275,826,516,571.32/626,115
  6. Step 6: Final answer
    x = 440,536.51

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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.