Finding the Fourth Proportional to 2,235,872.80, 3,085,402.80 and 1,217,275.36
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Solution
The fourth proportional to 2,235,872.80, 3,085,402.80 and 1,217,275.36 is: 1,679,784.65
Step by Step Solution
- Step 1: Write the proportion equation
2,235,872.80 : 3,085,402.80 = 1,217,275.36 : x - Step 2: Convert to fraction form
2,235,872.80/3,085,402.80 = 1,217,275.36/x - Step 3: Cross multiply
2,235,872.80x = 3,085,402.80 × 1,217,275.36 - Step 4: Simplify right side
2,235,872.80x = 3,755,784,804,115.01 - Step 5: Solve for x
x = 3,755,784,804,115.01/2,235,872.80 - Step 6: Final answer
x = 1,679,784.65
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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.