Finding the Fourth Proportional to 860,243.99, 1,290,282.59 and 261,210.41
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Solution
The fourth proportional to 860,243.99, 1,290,282.59 and 261,210.41 is: 391,790.29
Step by Step Solution
- Step 1: Write the proportion equation
860,243.99 : 1,290,282.59 = 261,210.41 : x - Step 2: Convert to fraction form
860,243.99/1,290,282.59 = 261,210.41/x - Step 3: Cross multiply
860,243.99x = 1,290,282.59 × 261,210.41 - Step 4: Simplify right side
860,243.99x = 337,035,236,592.30 - Step 5: Solve for x
x = 337,035,236,592.30/860,243.99 - Step 6: Final answer
x = 391,790.29
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.