Finding the Fourth Proportional to 1,354,639.36, 1,869,024 and 1,067,267.20
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Solution
The fourth proportional to 1,354,639.36, 1,869,024 and 1,067,267.20 is: 1,472,530.68
Step by Step Solution
- Step 1: Write the proportion equation
1,354,639.36 : 1,869,024 = 1,067,267.20 : x - Step 2: Convert to fraction form
1,354,639.36/1,869,024 = 1,067,267.20/x - Step 3: Cross multiply
1,354,639.36x = 1,869,024 × 1,067,267.20 - Step 4: Simplify right side
1,354,639.36x = 1,994,748,011,212.80 - Step 5: Solve for x
x = 1,994,748,011,212.80/1,354,639.36 - Step 6: Final answer
x = 1,472,530.68
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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.