Finding the Fourth Proportional to 5,215,309.08, 7,197,864.39 and 2,892,715.08
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Solution
The fourth proportional to 5,215,309.08, 7,197,864.39 and 2,892,715.08 is: 3,992,356.07
Step by Step Solution
- Step 1: Write the proportion equation
5,215,309.08 : 7,197,864.39 = 2,892,715.08 : x - Step 2: Convert to fraction form
5,215,309.08/7,197,864.39 = 2,892,715.08/x - Step 3: Cross multiply
5,215,309.08x = 7,197,864.39 × 2,892,715.08 - Step 4: Simplify right side
5,215,309.08x = 20,821,370,864,748 - Step 5: Solve for x
x = 20,821,370,864,748/5,215,309.08 - Step 6: Final answer
x = 3,992,356.07
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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.