Finding the Fourth Proportional to 1,231,811.29, 1,687,553.12 and 1,185,757.68
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Solution
The fourth proportional to 1,231,811.29, 1,687,553.12 and 1,185,757.68 is: 1,624,460.73
Step by Step Solution
- Step 1: Write the proportion equation
1,231,811.29 : 1,687,553.12 = 1,185,757.68 : x - Step 2: Convert to fraction form
1,231,811.29/1,687,553.12 = 1,185,757.68/x - Step 3: Cross multiply
1,231,811.29x = 1,687,553.12 × 1,185,757.68 - Step 4: Simplify right side
1,231,811.29x = 2,001,029,072,447.96 - Step 5: Solve for x
x = 2,001,029,072,447.96/1,231,811.29 - Step 6: Final answer
x = 1,624,460.73
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.