Finding the Fourth Proportional to 1,152,074.24, 1,589,862.88 and 642,765.68
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Solution
The fourth proportional to 1,152,074.24, 1,589,862.88 and 642,765.68 is: 887,016.88
Step by Step Solution
- Step 1: Write the proportion equation
1,152,074.24 : 1,589,862.88 = 642,765.68 : x - Step 2: Convert to fraction form
1,152,074.24/1,589,862.88 = 642,765.68/x - Step 3: Cross multiply
1,152,074.24x = 1,589,862.88 × 642,765.68 - Step 4: Simplify right side
1,152,074.24x = 1,021,909,295,169.96 - Step 5: Solve for x
x = 1,021,909,295,169.96/1,152,074.24 - Step 6: Final answer
x = 887,016.88
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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.