Finding the Fourth Proportional to 1,640,392.16, 2,460,716.64 and 442,296.08
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Solution
The fourth proportional to 1,640,392.16, 2,460,716.64 and 442,296.08 is: 663,478.74
Step by Step Solution
- Step 1: Write the proportion equation
1,640,392.16 : 2,460,716.64 = 442,296.08 : x - Step 2: Convert to fraction form
1,640,392.16/2,460,716.64 = 442,296.08/x - Step 3: Cross multiply
1,640,392.16x = 2,460,716.64 × 442,296.08 - Step 4: Simplify right side
1,640,392.16x = 1,088,365,323,862.77 - Step 5: Solve for x
x = 1,088,365,323,862.77/1,640,392.16 - Step 6: Final answer
x = 663,478.74
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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.