Finding the Fourth Proportional to 752,157.56, 1,128,402.41 and 278,842.93
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Solution
The fourth proportional to 752,157.56, 1,128,402.41 and 278,842.93 is: 418,325.95
Step by Step Solution
- Step 1: Write the proportion equation
752,157.56 : 1,128,402.41 = 278,842.93 : x - Step 2: Convert to fraction form
752,157.56/1,128,402.41 = 278,842.93/x - Step 3: Cross multiply
752,157.56x = 1,128,402.41 × 278,842.93 - Step 4: Simplify right side
752,157.56x = 314,647,030,008.24 - Step 5: Solve for x
x = 314,647,030,008.24/752,157.56 - Step 6: Final answer
x = 418,325.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.