Finding the Fourth Proportional to 876,159.31, 1,209,115.59 and 513,844.49
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Solution
The fourth proportional to 876,159.31, 1,209,115.59 and 513,844.49 is: 709,114.62
Step by Step Solution
- Step 1: Write the proportion equation
876,159.31 : 1,209,115.59 = 513,844.49 : x - Step 2: Convert to fraction form
876,159.31/1,209,115.59 = 513,844.49/x - Step 3: Cross multiply
876,159.31x = 1,209,115.59 × 513,844.49 - Step 4: Simplify right side
876,159.31x = 621,297,377,649.02 - Step 5: Solve for x
x = 621,297,377,649.02/876,159.31 - Step 6: Final answer
x = 709,114.62
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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.