Finding the Fourth Proportional to 1,686,040.99, 2,529,891.86 and 787,352.11
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Solution
The fourth proportional to 1,686,040.99, 2,529,891.86 and 787,352.11 is: 1,181,415.93
Step by Step Solution
- Step 1: Write the proportion equation
1,686,040.99 : 2,529,891.86 = 787,352.11 : x - Step 2: Convert to fraction form
1,686,040.99/2,529,891.86 = 787,352.11/x - Step 3: Cross multiply
1,686,040.99x = 2,529,891.86 × 787,352.11 - Step 4: Simplify right side
1,686,040.99x = 1,991,915,683,781.33 - Step 5: Solve for x
x = 1,991,915,683,781.33/1,686,040.99 - Step 6: Final answer
x = 1,181,415.93
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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.