Finding the Fourth Proportional to 623,855.98, 860,524.81 and 409,009.80
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Solution
The fourth proportional to 623,855.98, 860,524.81 and 409,009.80 is: 564,173.62
Step by Step Solution
- Step 1: Write the proportion equation
623,855.98 : 860,524.81 = 409,009.80 : x - Step 2: Convert to fraction form
623,855.98/860,524.81 = 409,009.80/x - Step 3: Cross multiply
623,855.98x = 860,524.81 × 409,009.80 - Step 4: Simplify right side
623,855.98x = 351,963,084,938.26 - Step 5: Solve for x
x = 351,963,084,938.26/623,855.98 - Step 6: Final answer
x = 564,173.62
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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.