Finding the Fourth Proportional to 1,425,607.68, 1,967,403.36 and 813,925.92
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Solution
The fourth proportional to 1,425,607.68, 1,967,403.36 and 813,925.92 is: 1,123,254.74
Step by Step Solution
- Step 1: Write the proportion equation
1,425,607.68 : 1,967,403.36 = 813,925.92 : x - Step 2: Convert to fraction form
1,425,607.68/1,967,403.36 = 813,925.92/x - Step 3: Cross multiply
1,425,607.68x = 1,967,403.36 × 813,925.92 - Step 4: Simplify right side
1,425,607.68x = 1,601,320,589,799.09 - Step 5: Solve for x
x = 1,601,320,589,799.09/1,425,607.68 - Step 6: Final answer
x = 1,123,254.74
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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.