Finding the Fourth Proportional to 2,123,916.08, 2,930,992.70 and 1,157,044.05
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Solution
The fourth proportional to 2,123,916.08, 2,930,992.70 and 1,157,044.05 is: 1,596,714.53
Step by Step Solution
- Step 1: Write the proportion equation
2,123,916.08 : 2,930,992.70 = 1,157,044.05 : x - Step 2: Convert to fraction form
2,123,916.08/2,930,992.70 = 1,157,044.05/x - Step 3: Cross multiply
2,123,916.08x = 2,930,992.70 × 1,157,044.05 - Step 4: Simplify right side
2,123,916.08x = 3,391,287,658,343.22 - Step 5: Solve for x
x = 3,391,287,658,343.22/2,123,916.08 - Step 6: Final answer
x = 1,596,714.53
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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.