Finding the Fourth Proportional to 2,078,356.91, 2,867,316.50 and 1,207,043.28
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Solution
The fourth proportional to 2,078,356.91, 2,867,316.50 and 1,207,043.28 is: 1,665,245.80
Step by Step Solution
- Step 1: Write the proportion equation
2,078,356.91 : 2,867,316.50 = 1,207,043.28 : x - Step 2: Convert to fraction form
2,078,356.91/2,867,316.50 = 1,207,043.28/x - Step 3: Cross multiply
2,078,356.91x = 2,867,316.50 × 1,207,043.28 - Step 4: Simplify right side
2,078,356.91x = 3,460,975,106,922.90 - Step 5: Solve for x
x = 3,460,975,106,922.90/2,078,356.91 - Step 6: Final answer
x = 1,665,245.80
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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.