Finding the Fourth Proportional to 628,702.08, 867,628.44 and 342,241.26
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Solution
The fourth proportional to 628,702.08, 867,628.44 and 342,241.26 is: 472,303.59
Step by Step Solution
- Step 1: Write the proportion equation
628,702.08 : 867,628.44 = 342,241.26 : x - Step 2: Convert to fraction form
628,702.08/867,628.44 = 342,241.26/x - Step 3: Cross multiply
628,702.08x = 867,628.44 × 342,241.26 - Step 4: Simplify right side
628,702.08x = 296,938,250,517.43 - Step 5: Solve for x
x = 296,938,250,517.43/628,702.08 - Step 6: Final answer
x = 472,303.59
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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.