Finding the Fourth Proportional to 664,940.30, 998,886.68 and 412,407.41
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Solution
The fourth proportional to 664,940.30, 998,886.68 and 412,407.41 is: 619,526.70
Step by Step Solution
- Step 1: Write the proportion equation
664,940.30 : 998,886.68 = 412,407.41 : x - Step 2: Convert to fraction form
664,940.30/998,886.68 = 412,407.41/x - Step 3: Cross multiply
664,940.30x = 998,886.68 × 412,407.41 - Step 4: Simplify right side
664,940.30x = 411,948,266,520.26 - Step 5: Solve for x
x = 411,948,266,520.26/664,940.30 - Step 6: Final answer
x = 619,526.70
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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.