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Finding the Fourth Proportional to 626,730.56, 939,855.93 and 266,676.20

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Solution

The fourth proportional to 626,730.56, 939,855.93 and 266,676.20 is: 399,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,730.56 : 939,855.93 = 266,676.20 : x
  2. Step 2: Convert to fraction form
    626,730.56/939,855.93 = 266,676.20/x
  3. Step 3: Cross multiply
    626,730.56x = 939,855.93 × 266,676.20
  4. Step 4: Simplify right side
    626,730.56x = 250,637,208,035.09
  5. Step 5: Solve for x
    x = 250,637,208,035.09/626,730.56
  6. Step 6: Final answer
    x = 399,912.21

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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.