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Finding the Fourth Proportional to 626,109, 939,310.94 and 498,507.90

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Solution

The fourth proportional to 626,109, 939,310.94 and 498,507.90 is: 747,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,109 : 939,310.94 = 498,507.90 : x
  2. Step 2: Convert to fraction form
    626,109/939,310.94 = 498,507.90/x
  3. Step 3: Cross multiply
    626,109x = 939,310.94 × 498,507.90
  4. Step 4: Simplify right side
    626,109x = 468,253,924,146.43
  5. Step 5: Solve for x
    x = 468,253,924,146.43/626,109
  6. Step 6: Final answer
    x = 747,879.24

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1.5x scale

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.