Finding the Fourth Proportional to 4,138,439.55, 6,207,921.72 and 1,298,663.79
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Solution
The fourth proportional to 4,138,439.55, 6,207,921.72 and 1,298,663.79 is: 1,948,078.03
Step by Step Solution
- Step 1: Write the proportion equation
4,138,439.55 : 6,207,921.72 = 1,298,663.79 : x - Step 2: Convert to fraction form
4,138,439.55/6,207,921.72 = 1,298,663.79/x - Step 3: Cross multiply
4,138,439.55x = 6,207,921.72 × 1,298,663.79 - Step 4: Simplify right side
4,138,439.55x = 8,062,003,148,918.52 - Step 5: Solve for x
x = 8,062,003,148,918.52/4,138,439.55 - Step 6: Final answer
x = 1,948,078.03
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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.