Finding the Fourth Proportional to 3,912,088.35, 5,863,990.85 and 1,315,921.62
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Solution
The fourth proportional to 3,912,088.35, 5,863,990.85 and 1,315,921.62 is: 1,972,489.28
Step by Step Solution
- Step 1: Write the proportion equation
3,912,088.35 : 5,863,990.85 = 1,315,921.62 : x - Step 2: Convert to fraction form
3,912,088.35/5,863,990.85 = 1,315,921.62/x - Step 3: Cross multiply
3,912,088.35x = 5,863,990.85 × 1,315,921.62 - Step 4: Simplify right side
3,912,088.35x = 7,716,552,338,997.18 - Step 5: Solve for x
x = 7,716,552,338,997.18/3,912,088.35 - Step 6: Final answer
x = 1,972,489.28
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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.