Finding the Fourth Proportional to 636,415.23, 878,250.14 and 349,934.63
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Solution
The fourth proportional to 636,415.23, 878,250.14 and 349,934.63 is: 482,908.21
Step by Step Solution
- Step 1: Write the proportion equation
636,415.23 : 878,250.14 = 349,934.63 : x - Step 2: Convert to fraction form
636,415.23/878,250.14 = 349,934.63/x - Step 3: Cross multiply
636,415.23x = 878,250.14 × 349,934.63 - Step 4: Simplify right side
636,415.23x = 307,330,139,868.22 - Step 5: Solve for x
x = 307,330,139,868.22/636,415.23 - Step 6: Final answer
x = 482,908.21
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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.