Finding the Fourth Proportional to 1,323,485.63, 1,985,228.64 and 326,213.63
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Solution
The fourth proportional to 1,323,485.63, 1,985,228.64 and 326,213.63 is: 489,320.49
Step by Step Solution
- Step 1: Write the proportion equation
1,323,485.63 : 1,985,228.64 = 326,213.63 : x - Step 2: Convert to fraction form
1,323,485.63/1,985,228.64 = 326,213.63/x - Step 3: Cross multiply
1,323,485.63x = 1,985,228.64 × 326,213.63 - Step 4: Simplify right side
1,323,485.63x = 647,608,631,108.22 - Step 5: Solve for x
x = 647,608,631,108.22/1,323,485.63 - Step 6: Final answer
x = 489,320.49
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1.5x scale
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.