Finding the Fourth Proportional to 1,121,090.84, 1,547,138.22 and 611,825.96
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Solution
The fourth proportional to 1,121,090.84, 1,547,138.22 and 611,825.96 is: 844,337.76
Step by Step Solution
- Step 1: Write the proportion equation
1,121,090.84 : 1,547,138.22 = 611,825.96 : x - Step 2: Convert to fraction form
1,121,090.84/1,547,138.22 = 611,825.96/x - Step 3: Cross multiply
1,121,090.84x = 1,547,138.22 × 611,825.96 - Step 4: Simplify right side
1,121,090.84x = 946,579,326,704.19 - Step 5: Solve for x
x = 946,579,326,704.19/1,121,090.84 - Step 6: Final answer
x = 844,337.76
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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.