Finding the Fourth Proportional to 1,689,146.46, 2,533,719.68 and 426,974.09
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Solution
The fourth proportional to 1,689,146.46, 2,533,719.68 and 426,974.09 is: 640,461.12
Step by Step Solution
- Step 1: Write the proportion equation
1,689,146.46 : 2,533,719.68 = 426,974.09 : x - Step 2: Convert to fraction form
1,689,146.46/2,533,719.68 = 426,974.09/x - Step 3: Cross multiply
1,689,146.46x = 2,533,719.68 × 426,974.09 - Step 4: Simplify right side
1,689,146.46x = 1,081,832,639,879.62 - Step 5: Solve for x
x = 1,081,832,639,879.62/1,689,146.46 - Step 6: Final answer
x = 640,461.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.