Finding the Fourth Proportional to 860,518.09, 1,290,727.86 and 328,092.94
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Solution
The fourth proportional to 860,518.09, 1,290,727.86 and 328,092.94 is: 492,120.62
Step by Step Solution
- Step 1: Write the proportion equation
860,518.09 : 1,290,727.86 = 328,092.94 : x - Step 2: Convert to fraction form
860,518.09/1,290,727.86 = 328,092.94/x - Step 3: Cross multiply
860,518.09x = 1,290,727.86 × 328,092.94 - Step 4: Simplify right side
860,518.09x = 423,478,698,327.31 - Step 5: Solve for x
x = 423,478,698,327.31/860,518.09 - Step 6: Final answer
x = 492,120.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.