Finding the Fourth Proportional to 1,121,327.40, 1,549,455.96 and 798,476.99
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Solution
The fourth proportional to 1,121,327.40, 1,549,455.96 and 798,476.99 is: 1,103,339.61
Step by Step Solution
- Step 1: Write the proportion equation
1,121,327.40 : 1,549,455.96 = 798,476.99 : x - Step 2: Convert to fraction form
1,121,327.40/1,549,455.96 = 798,476.99/x - Step 3: Cross multiply
1,121,327.40x = 1,549,455.96 × 798,476.99 - Step 4: Simplify right side
1,121,327.40x = 1,237,204,931,078.36 - Step 5: Solve for x
x = 1,237,204,931,078.36/1,121,327.40 - Step 6: Final answer
x = 1,103,339.61
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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.