Finding the Fourth Proportional to 1,868,653.20, 2,802,979.80 and 1,775,341.20
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Solution
The fourth proportional to 1,868,653.20, 2,802,979.80 and 1,775,341.20 is: 2,663,011.80
Step by Step Solution
- Step 1: Write the proportion equation
1,868,653.20 : 2,802,979.80 = 1,775,341.20 : x - Step 2: Convert to fraction form
1,868,653.20/2,802,979.80 = 1,775,341.20/x - Step 3: Cross multiply
1,868,653.20x = 2,802,979.80 × 1,775,341.20 - Step 4: Simplify right side
1,868,653.20x = 4,976,245,521,707.76 - Step 5: Solve for x
x = 4,976,245,521,707.76/1,868,653.20 - Step 6: Final answer
x = 2,663,011.80
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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.