Finding the Fourth Proportional to 1,971,838.08, 2,721,138.35 and 1,066,420.08
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Solution
The fourth proportional to 1,971,838.08, 2,721,138.35 and 1,066,420.08 is: 1,471,660.68
Step by Step Solution
- Step 1: Write the proportion equation
1,971,838.08 : 2,721,138.35 = 1,066,420.08 : x - Step 2: Convert to fraction form
1,971,838.08/2,721,138.35 = 1,066,420.08/x - Step 3: Cross multiply
1,971,838.08x = 2,721,138.35 × 1,066,420.08 - Step 4: Simplify right side
1,971,838.08x = 2,901,876,571,565.97 - Step 5: Solve for x
x = 2,901,876,571,565.97/1,971,838.08 - Step 6: Final answer
x = 1,471,660.68
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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.