Finding the Fourth Proportional to 3,063,608.79, 4,227,612.81 and 1,686,691.05
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Solution
The fourth proportional to 3,063,608.79, 4,227,612.81 and 1,686,691.05 is: 2,327,541.53
Step by Step Solution
- Step 1: Write the proportion equation
3,063,608.79 : 4,227,612.81 = 1,686,691.05 : x - Step 2: Convert to fraction form
3,063,608.79/4,227,612.81 = 1,686,691.05/x - Step 3: Cross multiply
3,063,608.79x = 4,227,612.81 × 1,686,691.05 - Step 4: Simplify right side
3,063,608.79x = 7,130,676,689,492.35 - Step 5: Solve for x
x = 7,130,676,689,492.35/3,063,608.79 - Step 6: Final answer
x = 2,327,541.53
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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.