Finding the Fourth Proportional to 623,420.12, 860,632.62 and 408,888.92
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Solution
The fourth proportional to 623,420.12, 860,632.62 and 408,888.92 is: 564,471.90
Step by Step Solution
- Step 1: Write the proportion equation
623,420.12 : 860,632.62 = 408,888.92 : x - Step 2: Convert to fraction form
623,420.12/860,632.62 = 408,888.92/x - Step 3: Cross multiply
623,420.12x = 860,632.62 × 408,888.92 - Step 4: Simplify right side
623,420.12x = 351,903,142,508.57 - Step 5: Solve for x
x = 351,903,142,508.57/623,420.12 - Step 6: Final answer
x = 564,471.90
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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.