Finding the Fourth Proportional to 1,208,261.72, 1,667,344.10 and 664,420.44
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Solution
The fourth proportional to 1,208,261.72, 1,667,344.10 and 664,420.44 is: 916,868.82
Step by Step Solution
- Step 1: Write the proportion equation
1,208,261.72 : 1,667,344.10 = 664,420.44 : x - Step 2: Convert to fraction form
1,208,261.72/1,667,344.10 = 664,420.44/x - Step 3: Cross multiply
1,208,261.72x = 1,667,344.10 × 664,420.44 - Step 4: Simplify right side
1,208,261.72x = 1,107,817,500,553.40 - Step 5: Solve for x
x = 1,107,817,500,553.40/1,208,261.72 - Step 6: Final answer
x = 916,868.82
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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.