Finding the Fourth Proportional to 1,640,745.08, 2,264,228.63 and 905,699.77
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Solution
The fourth proportional to 1,640,745.08, 2,264,228.63 and 905,699.77 is: 1,249,865.91
Step by Step Solution
- Step 1: Write the proportion equation
1,640,745.08 : 2,264,228.63 = 905,699.77 : x - Step 2: Convert to fraction form
1,640,745.08/2,264,228.63 = 905,699.77/x - Step 3: Cross multiply
1,640,745.08x = 2,264,228.63 × 905,699.77 - Step 4: Simplify right side
1,640,745.08x = 2,050,711,342,625.72 - Step 5: Solve for x
x = 2,050,711,342,625.72/1,640,745.08 - Step 6: Final answer
x = 1,249,865.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.