Finding the Fourth Proportional to 989,894.79, 1,366,055.69 and 537,185.79
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Solution
The fourth proportional to 989,894.79, 1,366,055.69 and 537,185.79 is: 741,316.86
Step by Step Solution
- Step 1: Write the proportion equation
989,894.79 : 1,366,055.69 = 537,185.79 : x - Step 2: Convert to fraction form
989,894.79/1,366,055.69 = 537,185.79/x - Step 3: Cross multiply
989,894.79x = 1,366,055.69 × 537,185.79 - Step 4: Simplify right side
989,894.79x = 733,825,702,330.72 - Step 5: Solve for x
x = 733,825,702,330.72/989,894.79 - Step 6: Final answer
x = 741,316.86
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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.