Finding the Fourth Proportional to 3,157,788.68, 4,357,745.32 and 1,707,480.66
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Solution
The fourth proportional to 3,157,788.68, 4,357,745.32 and 1,707,480.66 is: 2,356,321.66
Step by Step Solution
- Step 1: Write the proportion equation
3,157,788.68 : 4,357,745.32 = 1,707,480.66 : x - Step 2: Convert to fraction form
3,157,788.68/4,357,745.32 = 1,707,480.66/x - Step 3: Cross multiply
3,157,788.68x = 4,357,745.32 × 1,707,480.66 - Step 4: Simplify right side
3,157,788.68x = 7,440,765,855,105.51 - Step 5: Solve for x
x = 7,440,765,855,105.51/3,157,788.68 - Step 6: Final answer
x = 2,356,321.66
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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.