Finding the Fourth Proportional to 644,246.22, 889,070.46 and 353,884.63
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Solution
The fourth proportional to 644,246.22, 889,070.46 and 353,884.63 is: 488,366.65
Step by Step Solution
- Step 1: Write the proportion equation
644,246.22 : 889,070.46 = 353,884.63 : x - Step 2: Convert to fraction form
644,246.22/889,070.46 = 353,884.63/x - Step 3: Cross multiply
644,246.22x = 889,070.46 × 353,884.63 - Step 4: Simplify right side
644,246.22x = 314,628,370,888.90 - Step 5: Solve for x
x = 314,628,370,888.90/644,246.22 - Step 6: Final answer
x = 488,366.65
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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.