Finding the Fourth Proportional to 1,686,831.30, 2,530,830.15 and 1,628,511.30
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Solution
The fourth proportional to 1,686,831.30, 2,530,830.15 and 1,628,511.30 is: 2,443,329.99
Step by Step Solution
- Step 1: Write the proportion equation
1,686,831.30 : 2,530,830.15 = 1,628,511.30 : x - Step 2: Convert to fraction form
1,686,831.30/2,530,830.15 = 1,628,511.30/x - Step 3: Cross multiply
1,686,831.30x = 2,530,830.15 × 1,628,511.30 - Step 4: Simplify right side
1,686,831.30x = 4,121,485,497,655.70 - Step 5: Solve for x
x = 4,121,485,497,655.70/1,686,831.30 - Step 6: Final answer
x = 2,443,329.99
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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.