Finding the Fourth Proportional to 1,071,121.32, 1,478,161.98 and 587,677.68
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Solution
The fourth proportional to 1,071,121.32, 1,478,161.98 and 587,677.68 is: 811,003.19
Step by Step Solution
- Step 1: Write the proportion equation
1,071,121.32 : 1,478,161.98 = 587,677.68 : x - Step 2: Convert to fraction form
1,071,121.32/1,478,161.98 = 587,677.68/x - Step 3: Cross multiply
1,071,121.32x = 1,478,161.98 × 587,677.68 - Step 4: Simplify right side
1,071,121.32x = 868,682,803,070.61 - Step 5: Solve for x
x = 868,682,803,070.61/1,071,121.32 - Step 6: Final answer
x = 811,003.19
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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.