Finding the Fourth Proportional to 623,840.42, 860,859.68 and 355,551.14
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Solution
The fourth proportional to 623,840.42, 860,859.68 and 355,551.14 is: 490,637.72
Step by Step Solution
- Step 1: Write the proportion equation
623,840.42 : 860,859.68 = 355,551.14 : x - Step 2: Convert to fraction form
623,840.42/860,859.68 = 355,551.14/x - Step 3: Cross multiply
623,840.42x = 860,859.68 × 355,551.14 - Step 4: Simplify right side
623,840.42x = 306,079,640,604.04 - Step 5: Solve for x
x = 306,079,640,604.04/623,840.42 - Step 6: Final answer
x = 490,637.72
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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.