Finding the Fourth Proportional to 1,438,640.82, 1,985,027.97 and 826,675.35
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Solution
The fourth proportional to 1,438,640.82, 1,985,027.97 and 826,675.35 is: 1,140,641.69
Step by Step Solution
- Step 1: Write the proportion equation
1,438,640.82 : 1,985,027.97 = 826,675.35 : x - Step 2: Convert to fraction form
1,438,640.82/1,985,027.97 = 826,675.35/x - Step 3: Cross multiply
1,438,640.82x = 1,985,027.97 × 826,675.35 - Step 4: Simplify right side
1,438,640.82x = 1,640,973,698,681.50 - Step 5: Solve for x
x = 1,640,973,698,681.50/1,438,640.82 - Step 6: Final answer
x = 1,140,641.69
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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.