Finding the Fourth Proportional to 1,085,921.64, 1,620,065.09 and 1,027,135.08
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Solution
The fourth proportional to 1,085,921.64, 1,620,065.09 and 1,027,135.08 is: 1,532,362.58
Step by Step Solution
- Step 1: Write the proportion equation
1,085,921.64 : 1,620,065.09 = 1,027,135.08 : x - Step 2: Convert to fraction form
1,085,921.64/1,620,065.09 = 1,027,135.08/x - Step 3: Cross multiply
1,085,921.64x = 1,620,065.09 × 1,027,135.08 - Step 4: Simplify right side
1,085,921.64x = 1,664,025,688,390.19 - Step 5: Solve for x
x = 1,664,025,688,390.19/1,085,921.64 - Step 6: Final answer
x = 1,532,362.58
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.