Finding the Fourth Proportional to 487,363.14, 731,044.71 and 321,112.26
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Solution
The fourth proportional to 487,363.14, 731,044.71 and 321,112.26 is: 481,668.39
Step by Step Solution
- Step 1: Write the proportion equation
487,363.14 : 731,044.71 = 321,112.26 : x - Step 2: Convert to fraction form
487,363.14/731,044.71 = 321,112.26/x - Step 3: Cross multiply
487,363.14x = 731,044.71 × 321,112.26 - Step 4: Simplify right side
487,363.14x = 234,747,418,989.15 - Step 5: Solve for x
x = 234,747,418,989.15/487,363.14 - Step 6: Final answer
x = 481,668.39
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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.