Finding the Fourth Proportional to 1,615,781.26, 2,229,676.50 and 890,588.98
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Solution
The fourth proportional to 1,615,781.26, 2,229,676.50 and 890,588.98 is: 1,228,956.77
Step by Step Solution
- Step 1: Write the proportion equation
1,615,781.26 : 2,229,676.50 = 890,588.98 : x - Step 2: Convert to fraction form
1,615,781.26/2,229,676.50 = 890,588.98/x - Step 3: Cross multiply
1,615,781.26x = 2,229,676.50 × 890,588.98 - Step 4: Simplify right side
1,615,781.26x = 1,985,725,319,864.97 - Step 5: Solve for x
x = 1,985,725,319,864.97/1,615,781.26 - Step 6: Final answer
x = 1,228,956.77
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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.