Finding the Fourth Proportional to 2,291,986.13, 3,163,039.27 and 1,273,390.88
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Solution
The fourth proportional to 2,291,986.13, 3,163,039.27 and 1,273,390.88 is: 1,757,334.09
Step by Step Solution
- Step 1: Write the proportion equation
2,291,986.13 : 3,163,039.27 = 1,273,390.88 : x - Step 2: Convert to fraction form
2,291,986.13/3,163,039.27 = 1,273,390.88/x - Step 3: Cross multiply
2,291,986.13x = 3,163,039.27 × 1,273,390.88 - Step 4: Simplify right side
2,291,986.13x = 4,027,785,340,501.18 - Step 5: Solve for x
x = 4,027,785,340,501.18/2,291,986.13 - Step 6: Final answer
x = 1,757,334.09
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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.