Finding the Fourth Proportional to 2,207,057.51, 3,045,641.36 and 1,289,371.65
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Solution
The fourth proportional to 2,207,057.51, 3,045,641.36 and 1,289,371.65 is: 1,779,275.62
Step by Step Solution
- Step 1: Write the proportion equation
2,207,057.51 : 3,045,641.36 = 1,289,371.65 : x - Step 2: Convert to fraction form
2,207,057.51/3,045,641.36 = 1,289,371.65/x - Step 3: Cross multiply
2,207,057.51x = 3,045,641.36 × 1,289,371.65 - Step 4: Simplify right side
2,207,057.51x = 3,926,963,619,204.59 - Step 5: Solve for x
x = 3,926,963,619,204.59/2,207,057.51 - Step 6: Final answer
x = 1,779,275.62
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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.