Finding the Fourth Proportional to 2,139,681.12, 2,953,062.84 and 1,324,148.10
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Solution
The fourth proportional to 2,139,681.12, 2,953,062.84 and 1,324,148.10 is: 1,827,511.83
Step by Step Solution
- Step 1: Write the proportion equation
2,139,681.12 : 2,953,062.84 = 1,324,148.10 : x - Step 2: Convert to fraction form
2,139,681.12/2,953,062.84 = 1,324,148.10/x - Step 3: Cross multiply
2,139,681.12x = 2,953,062.84 × 1,324,148.10 - Step 4: Simplify right side
2,139,681.12x = 3,910,292,548,766.60 - Step 5: Solve for x
x = 3,910,292,548,766.60/2,139,681.12 - Step 6: Final answer
x = 1,827,511.83
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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.