Finding the Fourth Proportional to 1,434,512.04, 1,979,476.12 and 814,119.65
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Solution
The fourth proportional to 1,434,512.04, 1,979,476.12 and 814,119.65 is: 1,123,399.70
Step by Step Solution
- Step 1: Write the proportion equation
1,434,512.04 : 1,979,476.12 = 814,119.65 : x - Step 2: Convert to fraction form
1,434,512.04/1,979,476.12 = 814,119.65/x - Step 3: Cross multiply
1,434,512.04x = 1,979,476.12 × 814,119.65 - Step 4: Simplify right side
1,434,512.04x = 1,611,530,405,488.93 - Step 5: Solve for x
x = 1,611,530,405,488.93/1,434,512.04 - Step 6: Final answer
x = 1,123,399.70
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1.5x scale
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.