Finding the Fourth Proportional to 926,414.10, 1,278,160.09 and 518,451.12
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Solution
The fourth proportional to 926,414.10, 1,278,160.09 and 518,451.12 is: 715,299.49
Step by Step Solution
- Step 1: Write the proportion equation
926,414.10 : 1,278,160.09 = 518,451.12 : x - Step 2: Convert to fraction form
926,414.10/1,278,160.09 = 518,451.12/x - Step 3: Cross multiply
926,414.10x = 1,278,160.09 × 518,451.12 - Step 4: Simplify right side
926,414.10x = 662,663,528,903.67 - Step 5: Solve for x
x = 662,663,528,903.67/926,414.10 - Step 6: Final answer
x = 715,299.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.