Finding the Fourth Proportional to 2,167,135.68, 2,990,669.20 and 1,307,529.76
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Solution
The fourth proportional to 2,167,135.68, 2,990,669.20 and 1,307,529.76 is: 1,804,404.32
Step by Step Solution
- Step 1: Write the proportion equation
2,167,135.68 : 2,990,669.20 = 1,307,529.76 : x - Step 2: Convert to fraction form
2,167,135.68/2,990,669.20 = 1,307,529.76/x - Step 3: Cross multiply
2,167,135.68x = 2,990,669.20 × 1,307,529.76 - Step 4: Simplify right side
2,167,135.68x = 3,910,388,981,315.39 - Step 5: Solve for x
x = 3,910,388,981,315.39/2,167,135.68 - Step 6: Final answer
x = 1,804,404.32
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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.