Finding the Fourth Proportional to 851,752.41, 1,276,053.98 and 430,021.05
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Solution
The fourth proportional to 851,752.41, 1,276,053.98 and 430,021.05 is: 644,236.59
Step by Step Solution
- Step 1: Write the proportion equation
851,752.41 : 1,276,053.98 = 430,021.05 : x - Step 2: Convert to fraction form
851,752.41/1,276,053.98 = 430,021.05/x - Step 3: Cross multiply
851,752.41x = 1,276,053.98 × 430,021.05 - Step 4: Simplify right side
851,752.41x = 548,730,070,186.17 - Step 5: Solve for x
x = 548,730,070,186.17/851,752.41 - Step 6: Final answer
x = 644,236.59
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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.