Finding the Fourth Proportional to 2,889,683.36, 3,987,719.12 and 1,582,924.96
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Solution
The fourth proportional to 2,889,683.36, 3,987,719.12 and 1,582,924.96 is: 2,184,412.39
Step by Step Solution
- Step 1: Write the proportion equation
2,889,683.36 : 3,987,719.12 = 1,582,924.96 : x - Step 2: Convert to fraction form
2,889,683.36/3,987,719.12 = 1,582,924.96/x - Step 3: Cross multiply
2,889,683.36x = 3,987,719.12 × 1,582,924.96 - Step 4: Simplify right side
2,889,683.36x = 6,312,260,128,517.24 - Step 5: Solve for x
x = 6,312,260,128,517.24/2,889,683.36 - Step 6: Final answer
x = 2,184,412.39
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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.