Finding the Fourth Proportional to 715,816.63, 1,073,669.12 and 416,106.05
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Solution
The fourth proportional to 715,816.63, 1,073,669.12 and 416,106.05 is: 624,126.62
Step by Step Solution
- Step 1: Write the proportion equation
715,816.63 : 1,073,669.12 = 416,106.05 : x - Step 2: Convert to fraction form
715,816.63/1,073,669.12 = 416,106.05/x - Step 3: Cross multiply
715,816.63x = 1,073,669.12 × 416,106.05 - Step 4: Simplify right side
715,816.63x = 446,760,209,081.30 - Step 5: Solve for x
x = 446,760,209,081.30/715,816.63 - Step 6: Final answer
x = 624,126.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.