Finding the Fourth Proportional to 623,753.64, 860,778.70 and 351,820.68
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Solution
The fourth proportional to 623,753.64, 860,778.70 and 351,820.68 is: 485,511.79
Step by Step Solution
- Step 1: Write the proportion equation
623,753.64 : 860,778.70 = 351,820.68 : x - Step 2: Convert to fraction form
623,753.64/860,778.70 = 351,820.68/x - Step 3: Cross multiply
623,753.64x = 860,778.70 × 351,820.68 - Step 4: Simplify right side
623,753.64x = 302,839,747,563.52 - Step 5: Solve for x
x = 302,839,747,563.52/623,753.64 - Step 6: Final answer
x = 485,511.79
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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.