Finding the Fourth Proportional to 1,689,146.45, 2,533,719.68 and 426,974.08
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Solution
The fourth proportional to 1,689,146.45, 2,533,719.68 and 426,974.08 is: 640,461.12
Step by Step Solution
- Step 1: Write the proportion equation
1,689,146.45 : 2,533,719.68 = 426,974.08 : x - Step 2: Convert to fraction form
1,689,146.45/2,533,719.68 = 426,974.08/x - Step 3: Cross multiply
1,689,146.45x = 2,533,719.68 × 426,974.08 - Step 4: Simplify right side
1,689,146.45x = 1,081,832,622,477.88 - Step 5: Solve for x
x = 1,081,832,622,477.88/1,689,146.45 - 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.