Finding the Fourth Proportional to 747,579.70, 1,121,541.27 and 215,105.14
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Solution
The fourth proportional to 747,579.70, 1,121,541.27 and 215,105.14 is: 322,707.12
Step by Step Solution
- Step 1: Write the proportion equation
747,579.70 : 1,121,541.27 = 215,105.14 : x - Step 2: Convert to fraction form
747,579.70/1,121,541.27 = 215,105.14/x - Step 3: Cross multiply
747,579.70x = 1,121,541.27 × 215,105.14 - Step 4: Simplify right side
747,579.70x = 241,249,291,899.13 - Step 5: Solve for x
x = 241,249,291,899.13/747,579.70 - Step 6: Final answer
x = 322,707.12
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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.