Finding the Fourth Proportional to 877,517.63, 1,316,276.46 and 212,669.63
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Solution
The fourth proportional to 877,517.63, 1,316,276.46 and 212,669.63 is: 319,004.45
Step by Step Solution
- Step 1: Write the proportion equation
877,517.63 : 1,316,276.46 = 212,669.63 : x - Step 2: Convert to fraction form
877,517.63/1,316,276.46 = 212,669.63/x - Step 3: Cross multiply
877,517.63x = 1,316,276.46 × 212,669.63 - Step 4: Simplify right side
877,517.63x = 279,932,027,725.91 - Step 5: Solve for x
x = 279,932,027,725.91/877,517.63 - Step 6: Final answer
x = 319,004.45
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1.5x scale
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.