Finding the Fourth Proportional to 1,986,028.92, 2,740,301.76 and 1,298,708.28
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Solution
The fourth proportional to 1,986,028.92, 2,740,301.76 and 1,298,708.28 is: 1,791,943.99
Step by Step Solution
- Step 1: Write the proportion equation
1,986,028.92 : 2,740,301.76 = 1,298,708.28 : x - Step 2: Convert to fraction form
1,986,028.92/2,740,301.76 = 1,298,708.28/x - Step 3: Cross multiply
1,986,028.92x = 2,740,301.76 × 1,298,708.28 - Step 4: Simplify right side
1,986,028.92x = 3,558,852,585,410.57 - Step 5: Solve for x
x = 3,558,852,585,410.57/1,986,028.92 - Step 6: Final answer
x = 1,791,943.99
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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.