Finding the Fourth Proportional to 3,128,441.63, 4,317,249.44 and 1,697,657.63
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Solution
The fourth proportional to 3,128,441.63, 4,317,249.44 and 1,697,657.63 is: 2,342,767.52
Step by Step Solution
- Step 1: Write the proportion equation
3,128,441.63 : 4,317,249.44 = 1,697,657.63 : x - Step 2: Convert to fraction form
3,128,441.63/4,317,249.44 = 1,697,657.63/x - Step 3: Cross multiply
3,128,441.63x = 4,317,249.44 × 1,697,657.63 - Step 4: Simplify right side
3,128,441.63x = 7,329,211,435,087.12 - Step 5: Solve for x
x = 7,329,211,435,087.12/3,128,441.63 - Step 6: Final answer
x = 2,342,767.52
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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.