Finding the Fourth Proportional to 860,259.75, 1,290,545.55 and 354,539.49
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Solution
The fourth proportional to 860,259.75, 1,290,545.55 and 354,539.49 is: 531,873.50
Step by Step Solution
- Step 1: Write the proportion equation
860,259.75 : 1,290,545.55 = 354,539.49 : x - Step 2: Convert to fraction form
860,259.75/1,290,545.55 = 354,539.49/x - Step 3: Cross multiply
860,259.75x = 1,290,545.55 × 354,539.49 - Step 4: Simplify right side
860,259.75x = 457,549,361,118.77 - Step 5: Solve for x
x = 457,549,361,118.77/860,259.75 - Step 6: Final answer
x = 531,873.50
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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.