Finding the Fourth Proportional to 3,653,998.70, 5,480,998.05 and 1,129,909.10
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Solution
The fourth proportional to 3,653,998.70, 5,480,998.05 and 1,129,909.10 is: 1,694,863.65
Step by Step Solution
- Step 1: Write the proportion equation
3,653,998.70 : 5,480,998.05 = 1,129,909.10 : x - Step 2: Convert to fraction form
3,653,998.70/5,480,998.05 = 1,129,909.10/x - Step 3: Cross multiply
3,653,998.70x = 5,480,998.05 × 1,129,909.10 - Step 4: Simplify right side
3,653,998.70x = 6,193,029,573,777.26 - Step 5: Solve for x
x = 6,193,029,573,777.26/3,653,998.70 - Step 6: Final answer
x = 1,694,863.65
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1.5x scale
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.