Finding the Fourth Proportional to 623,728.70, 860,745.93 and 337,248.80
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Solution
The fourth proportional to 623,728.70, 860,745.93 and 337,248.80 is: 465,403.52
Step by Step Solution
- Step 1: Write the proportion equation
623,728.70 : 860,745.93 = 337,248.80 : x - Step 2: Convert to fraction form
623,728.70/860,745.93 = 337,248.80/x - Step 3: Cross multiply
623,728.70x = 860,745.93 × 337,248.80 - Step 4: Simplify right side
623,728.70x = 290,285,531,997.38 - Step 5: Solve for x
x = 290,285,531,997.38/623,728.70 - Step 6: Final answer
x = 465,403.52
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1.5x scale
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.