Finding the Fourth Proportional to 3,178,954.85, 4,386,824.15 and 1,802,391.17
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Solution
The fourth proportional to 3,178,954.85, 4,386,824.15 and 1,802,391.17 is: 2,487,224.09
Step by Step Solution
- Step 1: Write the proportion equation
3,178,954.85 : 4,386,824.15 = 1,802,391.17 : x - Step 2: Convert to fraction form
3,178,954.85/4,386,824.15 = 1,802,391.17/x - Step 3: Cross multiply
3,178,954.85x = 4,386,824.15 × 1,802,391.17 - Step 4: Simplify right side
3,178,954.85x = 7,906,773,081,356.68 - Step 5: Solve for x
x = 7,906,773,081,356.68/3,178,954.85 - Step 6: Final answer
x = 2,487,224.09
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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.