Finding the Fourth Proportional to 1,247,139.84, 1,721,052.28 and 674,181.06
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Solution
The fourth proportional to 1,247,139.84, 1,721,052.28 and 674,181.06 is: 930,369.48
Step by Step Solution
- Step 1: Write the proportion equation
1,247,139.84 : 1,721,052.28 = 674,181.06 : x - Step 2: Convert to fraction form
1,247,139.84/1,721,052.28 = 674,181.06/x - Step 3: Cross multiply
1,247,139.84x = 1,721,052.28 × 674,181.06 - Step 4: Simplify right side
1,247,139.84x = 1,160,300,850,445.82 - Step 5: Solve for x
x = 1,160,300,850,445.82/1,247,139.84 - Step 6: Final answer
x = 930,369.48
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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.