Finding the Fourth Proportional to 876,161.31, 1,209,118.35 and 513,846.49
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Solution
The fourth proportional to 876,161.31, 1,209,118.35 and 513,846.49 is: 709,117.39
Step by Step Solution
- Step 1: Write the proportion equation
876,161.31 : 1,209,118.35 = 513,846.49 : x - Step 2: Convert to fraction form
876,161.31/1,209,118.35 = 513,846.49/x - Step 3: Cross multiply
876,161.31x = 1,209,118.35 × 513,846.49 - Step 4: Simplify right side
876,161.31x = 621,301,220,142.09 - Step 5: Solve for x
x = 621,301,220,142.09/876,161.31 - Step 6: Final answer
x = 709,117.39
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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.