Finding the Fourth Proportional to 1,132,612.12, 1,562,652.77 and 642,500.97
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Solution
The fourth proportional to 1,132,612.12, 1,562,652.77 and 642,500.97 is: 886,451.68
Step by Step Solution
- Step 1: Write the proportion equation
1,132,612.12 : 1,562,652.77 = 642,500.97 : x - Step 2: Convert to fraction form
1,132,612.12/1,562,652.77 = 642,500.97/x - Step 3: Cross multiply
1,132,612.12x = 1,562,652.77 × 642,500.97 - Step 4: Simplify right side
1,132,612.12x = 1,004,005,920,498.19 - Step 5: Solve for x
x = 1,004,005,920,498.19/1,132,612.12 - Step 6: Final answer
x = 886,451.68
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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.