Finding the Fourth Proportional to 1,338,971.84, 1,847,773.68 and 727,118.72
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Solution
The fourth proportional to 1,338,971.84, 1,847,773.68 and 727,118.72 is: 1,003,419.78
Step by Step Solution
- Step 1: Write the proportion equation
1,338,971.84 : 1,847,773.68 = 727,118.72 : x - Step 2: Convert to fraction form
1,338,971.84/1,847,773.68 = 727,118.72/x - Step 3: Cross multiply
1,338,971.84x = 1,847,773.68 × 727,118.72 - Step 4: Simplify right side
1,338,971.84x = 1,343,550,833,051.29 - Step 5: Solve for x
x = 1,343,550,833,051.29/1,338,971.84 - Step 6: Final answer
x = 1,003,419.78
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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.