Finding the Fourth Proportional to 2,154,415.86, 2,973,226.91 and 1,187,543.97
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Solution
The fourth proportional to 2,154,415.86, 2,973,226.91 and 1,187,543.97 is: 1,638,884.00
Step by Step Solution
- Step 1: Write the proportion equation
2,154,415.86 : 2,973,226.91 = 1,187,543.97 : x - Step 2: Convert to fraction form
2,154,415.86/2,973,226.91 = 1,187,543.97/x - Step 3: Cross multiply
2,154,415.86x = 2,973,226.91 × 1,187,543.97 - Step 4: Simplify right side
2,154,415.86x = 3,530,837,682,474.51 - Step 5: Solve for x
x = 3,530,837,682,474.51/2,154,415.86 - Step 6: Final answer
x = 1,638,884.00
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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.