Finding the Fourth Proportional to 1,123,402.79, 1,684,938.08 and 413,264.75
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Solution
The fourth proportional to 1,123,402.79, 1,684,938.08 and 413,264.75 is: 619,836.02
Step by Step Solution
- Step 1: Write the proportion equation
1,123,402.79 : 1,684,938.08 = 413,264.75 : x - Step 2: Convert to fraction form
1,123,402.79/1,684,938.08 = 413,264.75/x - Step 3: Cross multiply
1,123,402.79x = 1,684,938.08 × 413,264.75 - Step 4: Simplify right side
1,123,402.79x = 696,325,514,396.68 - Step 5: Solve for x
x = 696,325,514,396.68/1,123,402.79 - Step 6: Final answer
x = 619,836.02
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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.