Finding the Fourth Proportional to 860,005.94, 1,290,009.12 and 252,794.26
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Solution
The fourth proportional to 860,005.94, 1,290,009.12 and 252,794.26 is: 379,191.45
Step by Step Solution
- Step 1: Write the proportion equation
860,005.94 : 1,290,009.12 = 252,794.26 : x - Step 2: Convert to fraction form
860,005.94/1,290,009.12 = 252,794.26/x - Step 3: Cross multiply
860,005.94x = 1,290,009.12 × 252,794.26 - Step 4: Simplify right side
860,005.94x = 326,106,900,883.65 - Step 5: Solve for x
x = 326,106,900,883.65/860,005.94 - Step 6: Final answer
x = 379,191.45
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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.