Finding the Fourth Proportional to 430,884.32, 646,107.76 and 323,283.92
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Solution
The fourth proportional to 430,884.32, 646,107.76 and 323,283.92 is: 484,761.78
Step by Step Solution
- Step 1: Write the proportion equation
430,884.32 : 646,107.76 = 323,283.92 : x - Step 2: Convert to fraction form
430,884.32/646,107.76 = 323,283.92/x - Step 3: Cross multiply
430,884.32x = 646,107.76 × 323,283.92 - Step 4: Simplify right side
430,884.32x = 208,876,249,395.22 - Step 5: Solve for x
x = 208,876,249,395.22/430,884.32 - Step 6: Final answer
x = 484,761.78
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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.