Finding the Fourth Proportional to 1,780,381.62, 2,670,565.95 and 981,242.10
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Solution
The fourth proportional to 1,780,381.62, 2,670,565.95 and 981,242.10 is: 1,471,859.58
Step by Step Solution
- Step 1: Write the proportion equation
1,780,381.62 : 2,670,565.95 = 981,242.10 : x - Step 2: Convert to fraction form
1,780,381.62/2,670,565.95 = 981,242.10/x - Step 3: Cross multiply
1,780,381.62x = 2,670,565.95 × 981,242.10 - Step 4: Simplify right side
1,780,381.62x = 2,620,471,740,966.50 - Step 5: Solve for x
x = 2,620,471,740,966.50/1,780,381.62 - Step 6: Final answer
x = 1,471,859.58
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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.