Finding the Fourth Proportional to 1,571,857.63, 2,169,163.55 and 856,465.63
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Solution
The fourth proportional to 1,571,857.63, 2,169,163.55 and 856,465.63 is: 1,181,922.58
Step by Step Solution
- Step 1: Write the proportion equation
1,571,857.63 : 2,169,163.55 = 856,465.63 : x - Step 2: Convert to fraction form
1,571,857.63/2,169,163.55 = 856,465.63/x - Step 3: Cross multiply
1,571,857.63x = 2,169,163.55 × 856,465.63 - Step 4: Simplify right side
1,571,857.63x = 1,857,814,026,423.79 - Step 5: Solve for x
x = 1,857,814,026,423.79/1,571,857.63 - Step 6: Final answer
x = 1,181,922.58
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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.