Finding the Fourth Proportional to 414,538.90, 621,808.35 and 274,455.70
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Solution
The fourth proportional to 414,538.90, 621,808.35 and 274,455.70 is: 411,683.55
Step by Step Solution
- Step 1: Write the proportion equation
414,538.90 : 621,808.35 = 274,455.70 : x - Step 2: Convert to fraction form
414,538.90/621,808.35 = 274,455.70/x - Step 3: Cross multiply
414,538.90x = 621,808.35 × 274,455.70 - Step 4: Simplify right side
414,538.90x = 170,658,845,965.10 - Step 5: Solve for x
x = 170,658,845,965.10/414,538.90 - Step 6: Final answer
x = 411,683.55
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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.