Finding the Fourth Proportional to 1,678,891.68, 2,316,802.80 and 914,928.80
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Solution
The fourth proportional to 1,678,891.68, 2,316,802.80 and 914,928.80 is: 1,262,564.84
Step by Step Solution
- Step 1: Write the proportion equation
1,678,891.68 : 2,316,802.80 = 914,928.80 : x - Step 2: Convert to fraction form
1,678,891.68/2,316,802.80 = 914,928.80/x - Step 3: Cross multiply
1,678,891.68x = 2,316,802.80 × 914,928.80 - Step 4: Simplify right side
1,678,891.68x = 2,119,709,605,640.64 - Step 5: Solve for x
x = 2,119,709,605,640.64/1,678,891.68 - Step 6: Final answer
x = 1,262,564.84
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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.