Finding the Fourth Proportional to 2,020,950.68, 2,788,914.30 and 1,115,532.68
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Solution
The fourth proportional to 2,020,950.68, 2,788,914.30 and 1,115,532.68 is: 1,539,436.40
Step by Step Solution
- Step 1: Write the proportion equation
2,020,950.68 : 2,788,914.30 = 1,115,532.68 : x - Step 2: Convert to fraction form
2,020,950.68/2,788,914.30 = 1,115,532.68/x - Step 3: Cross multiply
2,020,950.68x = 2,788,914.30 × 1,115,532.68 - Step 4: Simplify right side
2,020,950.68x = 3,111,125,043,369.32 - Step 5: Solve for x
x = 3,111,125,043,369.32/2,020,950.68 - Step 6: Final answer
x = 1,539,436.40
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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.