Finding the Fourth Proportional to 1,201,399.08, 1,657,266.66 and 771,742.68
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Solution
The fourth proportional to 1,201,399.08, 1,657,266.66 and 771,742.68 is: 1,064,578.32
Step by Step Solution
- Step 1: Write the proportion equation
1,201,399.08 : 1,657,266.66 = 771,742.68 : x - Step 2: Convert to fraction form
1,201,399.08/1,657,266.66 = 771,742.68/x - Step 3: Cross multiply
1,201,399.08x = 1,657,266.66 × 771,742.68 - Step 4: Simplify right side
1,201,399.08x = 1,278,983,413,663.05 - Step 5: Solve for x
x = 1,278,983,413,663.05/1,201,399.08 - Step 6: Final answer
x = 1,064,578.32
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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.