Finding the Fourth Proportional to 860,681.44, 1,288,261.68 and 460,321.12
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Solution
The fourth proportional to 860,681.44, 1,288,261.68 and 460,321.12 is: 689,005.28
Step by Step Solution
- Step 1: Write the proportion equation
860,681.44 : 1,288,261.68 = 460,321.12 : x - Step 2: Convert to fraction form
860,681.44/1,288,261.68 = 460,321.12/x - Step 3: Cross multiply
860,681.44x = 1,288,261.68 × 460,321.12 - Step 4: Simplify right side
860,681.44x = 593,014,059,390.68 - Step 5: Solve for x
x = 593,014,059,390.68/860,681.44 - Step 6: Final answer
x = 689,005.28
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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.