Finding the Fourth Proportional to 742,305.76, 1,114,018.41 and 543,139.99
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Solution
The fourth proportional to 742,305.76, 1,114,018.41 and 543,139.99 is: 815,119.56
Step by Step Solution
- Step 1: Write the proportion equation
742,305.76 : 1,114,018.41 = 543,139.99 : x - Step 2: Convert to fraction form
742,305.76/1,114,018.41 = 543,139.99/x - Step 3: Cross multiply
742,305.76x = 1,114,018.41 × 543,139.99 - Step 4: Simplify right side
742,305.76x = 605,067,948,067.22 - Step 5: Solve for x
x = 605,067,948,067.22/742,305.76 - Step 6: Final answer
x = 815,119.56
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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.