Finding the Fourth Proportional to 860,117.24, 1,290,331.41 and 354,396.88
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Solution
The fourth proportional to 860,117.24, 1,290,331.41 and 354,396.88 is: 531,659.41
Step by Step Solution
- Step 1: Write the proportion equation
860,117.24 : 1,290,331.41 = 354,396.88 : x - Step 2: Convert to fraction form
860,117.24/1,290,331.41 = 354,396.88/x - Step 3: Cross multiply
860,117.24x = 1,290,331.41 × 354,396.88 - Step 4: Simplify right side
860,117.24x = 457,289,425,870.00 - Step 5: Solve for x
x = 457,289,425,870.00/860,117.24 - Step 6: Final answer
x = 531,659.41
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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.