Finding the Fourth Proportional to 998,858.98, 1,378,404.48 and 546,149.98
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Solution
The fourth proportional to 998,858.98, 1,378,404.48 and 546,149.98 is: 753,675.54
Step by Step Solution
- Step 1: Write the proportion equation
998,858.98 : 1,378,404.48 = 546,149.98 : x - Step 2: Convert to fraction form
998,858.98/1,378,404.48 = 546,149.98/x - Step 3: Cross multiply
998,858.98x = 1,378,404.48 × 546,149.98 - Step 4: Simplify right side
998,858.98x = 752,815,579,183.91 - Step 5: Solve for x
x = 752,815,579,183.91/998,858.98 - Step 6: Final answer
x = 753,675.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.