Finding the Fourth Proportional to 1,288,581.44, 1,779,131.99 and 805,363.79
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Solution
The fourth proportional to 1,288,581.44, 1,779,131.99 and 805,363.79 is: 1,111,958.03
Step by Step Solution
- Step 1: Write the proportion equation
1,288,581.44 : 1,779,131.99 = 805,363.79 : x - Step 2: Convert to fraction form
1,288,581.44/1,779,131.99 = 805,363.79/x - Step 3: Cross multiply
1,288,581.44x = 1,779,131.99 × 805,363.79 - Step 4: Simplify right side
1,288,581.44x = 1,432,848,475,494.39 - Step 5: Solve for x
x = 1,432,848,475,494.39/1,288,581.44 - Step 6: Final answer
x = 1,111,958.03
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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.