Finding the Fourth Proportional to 628,845.12, 867,777.30 and 342,364.32
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Solution
The fourth proportional to 628,845.12, 867,777.30 and 342,364.32 is: 472,446.99
Step by Step Solution
- Step 1: Write the proportion equation
628,845.12 : 867,777.30 = 342,364.32 : x - Step 2: Convert to fraction form
628,845.12/867,777.30 = 342,364.32/x - Step 3: Cross multiply
628,845.12x = 867,777.30 × 342,364.32 - Step 4: Simplify right side
628,845.12x = 297,095,985,225.94 - Step 5: Solve for x
x = 297,095,985,225.94/628,845.12 - Step 6: Final answer
x = 472,446.99
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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.