Finding the Fourth Proportional to 1,647,465.21, 2,470,272.71 and 1,128,725.91
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Solution
The fourth proportional to 1,647,465.21, 2,470,272.71 and 1,128,725.91 is: 1,692,455.05
Step by Step Solution
- Step 1: Write the proportion equation
1,647,465.21 : 2,470,272.71 = 1,128,725.91 : x - Step 2: Convert to fraction form
1,647,465.21/2,470,272.71 = 1,128,725.91/x - Step 3: Cross multiply
1,647,465.21x = 2,470,272.71 × 1,128,725.91 - Step 4: Simplify right side
1,647,465.21x = 2,788,260,806,899.29 - Step 5: Solve for x
x = 2,788,260,806,899.29/1,647,465.21 - Step 6: Final answer
x = 1,692,455.05
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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.