Finding the Fourth Proportional to 1,396,405.80, 2,094,608.70 and 687,817.80
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Solution
The fourth proportional to 1,396,405.80, 2,094,608.70 and 687,817.80 is: 1,031,726.70
Step by Step Solution
- Step 1: Write the proportion equation
1,396,405.80 : 2,094,608.70 = 687,817.80 : x - Step 2: Convert to fraction form
1,396,405.80/2,094,608.70 = 687,817.80/x - Step 3: Cross multiply
1,396,405.80x = 2,094,608.70 × 687,817.80 - Step 4: Simplify right side
1,396,405.80x = 1,440,709,147,894.86 - Step 5: Solve for x
x = 1,440,709,147,894.86/1,396,405.80 - Step 6: Final answer
x = 1,031,726.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.