Finding the Fourth Proportional to 915,471.08, 1,263,299.49 and 507,549.11
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Solution
The fourth proportional to 915,471.08, 1,263,299.49 and 507,549.11 is: 700,389.71
Step by Step Solution
- Step 1: Write the proportion equation
915,471.08 : 1,263,299.49 = 507,549.11 : x - Step 2: Convert to fraction form
915,471.08/1,263,299.49 = 507,549.11/x - Step 3: Cross multiply
915,471.08x = 1,263,299.49 × 507,549.11 - Step 4: Simplify right side
915,471.08x = 641,186,525,496.46 - Step 5: Solve for x
x = 641,186,525,496.46/915,471.08 - Step 6: Final answer
x = 700,389.71
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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.