Finding the Fourth Proportional to 1,403,376.48, 1,936,217.44 and 858,944.70
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Solution
The fourth proportional to 1,403,376.48, 1,936,217.44 and 858,944.70 is: 1,185,073.09
Step by Step Solution
- Step 1: Write the proportion equation
1,403,376.48 : 1,936,217.44 = 858,944.70 : x - Step 2: Convert to fraction form
1,403,376.48/1,936,217.44 = 858,944.70/x - Step 3: Cross multiply
1,403,376.48x = 1,936,217.44 × 858,944.70 - Step 4: Simplify right side
1,403,376.48x = 1,663,103,708,135.57 - Step 5: Solve for x
x = 1,663,103,708,135.57/1,403,376.48 - Step 6: Final answer
x = 1,185,073.09
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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.