Finding the Fourth Proportional to 1,434,521.66, 1,979,489.36 and 814,129.26
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Solution
The fourth proportional to 1,434,521.66, 1,979,489.36 and 814,129.26 is: 1,123,412.95
Step by Step Solution
- Step 1: Write the proportion equation
1,434,521.66 : 1,979,489.36 = 814,129.26 : x - Step 2: Convert to fraction form
1,434,521.66/1,979,489.36 = 814,129.26/x - Step 3: Cross multiply
1,434,521.66x = 1,979,489.36 × 814,129.26 - Step 4: Simplify right side
1,434,521.66x = 1,611,560,209,002.06 - Step 5: Solve for x
x = 1,611,560,209,002.06/1,434,521.66 - Step 6: Final answer
x = 1,123,412.95
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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.