Finding the Fourth Proportional to 1,186,016.99, 1,779,419.14 and 387,324.59
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Solution
The fourth proportional to 1,186,016.99, 1,779,419.14 and 387,324.59 is: 581,115.44
Step by Step Solution
- Step 1: Write the proportion equation
1,186,016.99 : 1,779,419.14 = 387,324.59 : x - Step 2: Convert to fraction form
1,186,016.99/1,779,419.14 = 387,324.59/x - Step 3: Cross multiply
1,186,016.99x = 1,779,419.14 × 387,324.59 - Step 4: Simplify right side
1,186,016.99x = 689,212,778,973.25 - Step 5: Solve for x
x = 689,212,778,973.25/1,186,016.99 - Step 6: Final answer
x = 581,115.44
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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.