Finding the Fourth Proportional to 3,207,214.58, 4,424,278.12 and 1,983,128.81
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Solution
The fourth proportional to 3,207,214.58, 4,424,278.12 and 1,983,128.81 is: 2,735,680.19
Step by Step Solution
- Step 1: Write the proportion equation
3,207,214.58 : 4,424,278.12 = 1,983,128.81 : x - Step 2: Convert to fraction form
3,207,214.58/4,424,278.12 = 1,983,128.81/x - Step 3: Cross multiply
3,207,214.58x = 4,424,278.12 × 1,983,128.81 - Step 4: Simplify right side
3,207,214.58x = 8,773,913,376,145.42 - Step 5: Solve for x
x = 8,773,913,376,145.42/3,207,214.58 - Step 6: Final answer
x = 2,735,680.19
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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.