Finding the Fourth Proportional to 2,086,403.36, 3,129,604.95 and 1,139,257.40
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Solution
The fourth proportional to 2,086,403.36, 3,129,604.95 and 1,139,257.40 is: 1,708,886.05
Step by Step Solution
- Step 1: Write the proportion equation
2,086,403.36 : 3,129,604.95 = 1,139,257.40 : x - Step 2: Convert to fraction form
2,086,403.36/3,129,604.95 = 1,139,257.40/x - Step 3: Cross multiply
2,086,403.36x = 3,129,604.95 × 1,139,257.40 - Step 4: Simplify right side
2,086,403.36x = 3,565,425,598,364.13 - Step 5: Solve for x
x = 3,565,425,598,364.13/2,086,403.36 - Step 6: Final answer
x = 1,708,886.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.