Finding the Fourth Proportional to 1,986,293.57, 2,979,426.04 and 1,315,377.99
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Solution
The fourth proportional to 1,986,293.57, 2,979,426.04 and 1,315,377.99 is: 1,973,057.51
Step by Step Solution
- Step 1: Write the proportion equation
1,986,293.57 : 2,979,426.04 = 1,315,377.99 : x - Step 2: Convert to fraction form
1,986,293.57/2,979,426.04 = 1,315,377.99/x - Step 3: Cross multiply
1,986,293.57x = 2,979,426.04 × 1,315,377.99 - Step 4: Simplify right side
1,986,293.57x = 3,919,071,432,560.41 - Step 5: Solve for x
x = 3,919,071,432,560.41/1,986,293.57 - Step 6: Final answer
x = 1,973,057.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.