Finding the Fourth Proportional to 1,898,666.30, 2,620,532.99 and 1,438,979.06
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Solution
The fourth proportional to 1,898,666.30, 2,620,532.99 and 1,438,979.06 is: 1,986,074.17
Step by Step Solution
- Step 1: Write the proportion equation
1,898,666.30 : 2,620,532.99 = 1,438,979.06 : x - Step 2: Convert to fraction form
1,898,666.30/2,620,532.99 = 1,438,979.06/x - Step 3: Cross multiply
1,898,666.30x = 2,620,532.99 × 1,438,979.06 - Step 4: Simplify right side
1,898,666.30x = 3,770,892,078,351.63 - Step 5: Solve for x
x = 3,770,892,078,351.63/1,898,666.30 - Step 6: Final answer
x = 1,986,074.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.