Finding the Fourth Proportional to 915,520.14, 1,263,548.52 and 507,712.68
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Solution
The fourth proportional to 915,520.14, 1,263,548.52 and 507,712.68 is: 700,715.99
Step by Step Solution
- Step 1: Write the proportion equation
915,520.14 : 1,263,548.52 = 507,712.68 : x - Step 2: Convert to fraction form
915,520.14/1,263,548.52 = 507,712.68/x - Step 3: Cross multiply
915,520.14x = 1,263,548.52 × 507,712.68 - Step 4: Simplify right side
915,520.14x = 641,519,605,399.23 - Step 5: Solve for x
x = 641,519,605,399.23/915,520.14 - Step 6: Final answer
x = 700,715.99
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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.