Finding the Fourth Proportional to 1,289,471.04, 1,779,434.68 and 716,496.48
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Solution
The fourth proportional to 1,289,471.04, 1,779,434.68 and 716,496.48 is: 988,745.50
Step by Step Solution
- Step 1: Write the proportion equation
1,289,471.04 : 1,779,434.68 = 716,496.48 : x - Step 2: Convert to fraction form
1,289,471.04/1,779,434.68 = 716,496.48/x - Step 3: Cross multiply
1,289,471.04x = 1,779,434.68 × 716,496.48 - Step 4: Simplify right side
1,289,471.04x = 1,274,958,684,609.93 - Step 5: Solve for x
x = 1,274,958,684,609.93/1,289,471.04 - Step 6: Final answer
x = 988,745.50
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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.