Finding the Fourth Proportional to 660,692.18, 911,739.91 and 385,032.46
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Solution
The fourth proportional to 660,692.18, 911,739.91 and 385,032.46 is: 531,335.88
Step by Step Solution
- Step 1: Write the proportion equation
660,692.18 : 911,739.91 = 385,032.46 : x - Step 2: Convert to fraction form
660,692.18/911,739.91 = 385,032.46/x - Step 3: Cross multiply
660,692.18x = 911,739.91 × 385,032.46 - Step 4: Simplify right side
660,692.18x = 351,049,460,427.48 - Step 5: Solve for x
x = 351,049,460,427.48/660,692.18 - Step 6: Final answer
x = 531,335.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.