Finding the Fourth Proportional to 623,385.68, 860,276.18 and 336,905.09
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Solution
The fourth proportional to 623,385.68, 860,276.18 and 336,905.09 is: 464,931.15
Step by Step Solution
- Step 1: Write the proportion equation
623,385.68 : 860,276.18 = 336,905.09 : x - Step 2: Convert to fraction form
623,385.68/860,276.18 = 336,905.09/x - Step 3: Cross multiply
623,385.68x = 860,276.18 × 336,905.09 - Step 4: Simplify right side
623,385.68x = 289,831,422,163.23 - Step 5: Solve for x
x = 289,831,422,163.23/623,385.68 - Step 6: Final answer
x = 464,931.15
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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.