Finding the Fourth Proportional to 867,709, 1,302,405.20 and 418,745.84
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Solution
The fourth proportional to 867,709, 1,302,405.20 and 418,745.84 is: 628,524.95
Step by Step Solution
- Step 1: Write the proportion equation
867,709 : 1,302,405.20 = 418,745.84 : x - Step 2: Convert to fraction form
867,709/1,302,405.20 = 418,745.84/x - Step 3: Cross multiply
867,709x = 1,302,405.20 × 418,745.84 - Step 4: Simplify right side
867,709x = 545,376,759,494.37 - Step 5: Solve for x
x = 545,376,759,494.37/867,709 - Step 6: Final answer
x = 628,524.95
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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.