Finding the Fourth Proportional to 1,440,831.35, 1,988,293.53 and 829,078.70
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Solution
The fourth proportional to 1,440,831.35, 1,988,293.53 and 829,078.70 is: 1,144,097.69
Step by Step Solution
- Step 1: Write the proportion equation
1,440,831.35 : 1,988,293.53 = 829,078.70 : x - Step 2: Convert to fraction form
1,440,831.35/1,988,293.53 = 829,078.70/x - Step 3: Cross multiply
1,440,831.35x = 1,988,293.53 × 829,078.70 - Step 4: Simplify right side
1,440,831.35x = 1,648,451,815,070.81 - Step 5: Solve for x
x = 1,648,451,815,070.81/1,440,831.35 - Step 6: Final answer
x = 1,144,097.69
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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.