Finding the Fourth Proportional to 1,888,310.79, 2,605,869.29 and 1,028,871.05
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Solution
The fourth proportional to 1,888,310.79, 2,605,869.29 and 1,028,871.05 is: 1,419,842.27
Step by Step Solution
- Step 1: Write the proportion equation
1,888,310.79 : 2,605,869.29 = 1,028,871.05 : x - Step 2: Convert to fraction form
1,888,310.79/2,605,869.29 = 1,028,871.05/x - Step 3: Cross multiply
1,888,310.79x = 2,605,869.29 × 1,028,871.05 - Step 4: Simplify right side
1,888,310.79x = 2,681,103,472,565.05 - Step 5: Solve for x
x = 2,681,103,472,565.05/1,888,310.79 - Step 6: Final answer
x = 1,419,842.27
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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.