Finding the Fourth Proportional to 876,840.26, 1,314,482.79 and 427,309.70
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Solution
The fourth proportional to 876,840.26, 1,314,482.79 and 427,309.70 is: 640,585.60
Step by Step Solution
- Step 1: Write the proportion equation
876,840.26 : 1,314,482.79 = 427,309.70 : x - Step 2: Convert to fraction form
876,840.26/1,314,482.79 = 427,309.70/x - Step 3: Cross multiply
876,840.26x = 1,314,482.79 × 427,309.70 - Step 4: Simplify right side
876,840.26x = 561,691,246,650.06 - Step 5: Solve for x
x = 561,691,246,650.06/876,840.26 - Step 6: Final answer
x = 640,585.60
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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.