Finding the Fourth Proportional to 1,206,129.60, 1,817,863.86 and 1,039,659.12
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Solution
The fourth proportional to 1,206,129.60, 1,817,863.86 and 1,039,659.12 is: 1,566,961.58
Step by Step Solution
- Step 1: Write the proportion equation
1,206,129.60 : 1,817,863.86 = 1,039,659.12 : x - Step 2: Convert to fraction form
1,206,129.60/1,817,863.86 = 1,039,659.12/x - Step 3: Cross multiply
1,206,129.60x = 1,817,863.86 × 1,039,659.12 - Step 4: Simplify right side
1,206,129.60x = 1,889,958,744,866.13 - Step 5: Solve for x
x = 1,889,958,744,866.13/1,206,129.60 - Step 6: Final answer
x = 1,566,961.58
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.