Finding the Fourth Proportional to 2,215,276.21, 3,057,649.93 and 1,442,831.86
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Solution
The fourth proportional to 2,215,276.21, 3,057,649.93 and 1,442,831.86 is: 1,991,478.41
Step by Step Solution
- Step 1: Write the proportion equation
2,215,276.21 : 3,057,649.93 = 1,442,831.86 : x - Step 2: Convert to fraction form
2,215,276.21/3,057,649.93 = 1,442,831.86/x - Step 3: Cross multiply
2,215,276.21x = 3,057,649.93 × 1,442,831.86 - Step 4: Simplify right side
2,215,276.21x = 4,411,674,735,730.77 - Step 5: Solve for x
x = 4,411,674,735,730.77/2,215,276.21 - Step 6: Final answer
x = 1,991,478.41
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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.