Finding the Fourth Proportional to 2,167,574.12, 2,991,251.24 and 1,296,408.80
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Solution
The fourth proportional to 2,167,574.12, 2,991,251.24 and 1,296,408.80 is: 1,789,043.51
Step by Step Solution
- Step 1: Write the proportion equation
2,167,574.12 : 2,991,251.24 = 1,296,408.80 : x - Step 2: Convert to fraction form
2,167,574.12/2,991,251.24 = 1,296,408.80/x - Step 3: Cross multiply
2,167,574.12x = 2,991,251.24 × 1,296,408.80 - Step 4: Simplify right side
2,167,574.12x = 3,877,884,415,590.66 - Step 5: Solve for x
x = 3,877,884,415,590.66/2,167,574.12 - Step 6: Final answer
x = 1,789,043.51
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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.