Finding the Fourth Proportional to 1,615,575.84, 2,229,403.68 and 890,421.36
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Solution
The fourth proportional to 1,615,575.84, 2,229,403.68 and 890,421.36 is: 1,228,731.33
Step by Step Solution
- Step 1: Write the proportion equation
1,615,575.84 : 2,229,403.68 = 890,421.36 : x - Step 2: Convert to fraction form
1,615,575.84/2,229,403.68 = 890,421.36/x - Step 3: Cross multiply
1,615,575.84x = 2,229,403.68 × 890,421.36 - Step 4: Simplify right side
1,615,575.84x = 1,985,108,656,734.61 - Step 5: Solve for x
x = 1,985,108,656,734.61/1,615,575.84 - Step 6: Final answer
x = 1,228,731.33
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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.