Finding the Fourth Proportional to 1,137,831.11, 1,707,419.99 and 418,677.81
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Solution
The fourth proportional to 1,137,831.11, 1,707,419.99 and 418,677.81 is: 628,264.47
Step by Step Solution
- Step 1: Write the proportion equation
1,137,831.11 : 1,707,419.99 = 418,677.81 : x - Step 2: Convert to fraction form
1,137,831.11/1,707,419.99 = 418,677.81/x - Step 3: Cross multiply
1,137,831.11x = 1,707,419.99 × 418,677.81 - Step 4: Simplify right side
1,137,831.11x = 714,858,860,070.03 - Step 5: Solve for x
x = 714,858,860,070.03/1,137,831.11 - Step 6: Final answer
x = 628,264.47
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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.