Finding the Fourth Proportional to 411,207.70, 617,848.35 and 261,519.70
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Solution
The fourth proportional to 411,207.70, 617,848.35 and 261,519.70 is: 392,938.93
Step by Step Solution
- Step 1: Write the proportion equation
411,207.70 : 617,848.35 = 261,519.70 : x - Step 2: Convert to fraction form
411,207.70/617,848.35 = 261,519.70/x - Step 3: Cross multiply
411,207.70x = 617,848.35 × 261,519.70 - Step 4: Simplify right side
411,207.70x = 161,579,515,137.50 - Step 5: Solve for x
x = 161,579,515,137.50/411,207.70 - Step 6: Final answer
x = 392,938.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.