Finding the Fourth Proportional to 869,106.80, 1,303,660.20 and 806,121.20
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Solution
The fourth proportional to 869,106.80, 1,303,660.20 and 806,121.20 is: 1,209,181.80
Step by Step Solution
- Step 1: Write the proportion equation
869,106.80 : 1,303,660.20 = 806,121.20 : x - Step 2: Convert to fraction form
869,106.80/1,303,660.20 = 806,121.20/x - Step 3: Cross multiply
869,106.80x = 1,303,660.20 × 806,121.20 - Step 4: Simplify right side
869,106.80x = 1,050,908,124,816.24 - Step 5: Solve for x
x = 1,050,908,124,816.24/869,106.80 - Step 6: Final answer
x = 1,209,181.80
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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.