Finding the Fourth Proportional to 1,534,513.92, 2,117,638.26 and 890,317.68
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Solution
The fourth proportional to 1,534,513.92, 2,117,638.26 and 890,317.68 is: 1,228,643.65
Step by Step Solution
- Step 1: Write the proportion equation
1,534,513.92 : 2,117,638.26 = 890,317.68 : x - Step 2: Convert to fraction form
1,534,513.92/2,117,638.26 = 890,317.68/x - Step 3: Cross multiply
1,534,513.92x = 2,117,638.26 × 890,317.68 - Step 4: Simplify right side
1,534,513.92x = 1,885,370,782,722.44 - Step 5: Solve for x
x = 1,885,370,782,722.44/1,534,513.92 - Step 6: Final answer
x = 1,228,643.65
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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.