Finding the Fourth Proportional to 1,259,288.72, 1,738,482.92 and 1,011,589.28
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Solution
The fourth proportional to 1,259,288.72, 1,738,482.92 and 1,011,589.28 is: 1,396,526.99
Step by Step Solution
- Step 1: Write the proportion equation
1,259,288.72 : 1,738,482.92 = 1,011,589.28 : x - Step 2: Convert to fraction form
1,259,288.72/1,738,482.92 = 1,011,589.28/x - Step 3: Cross multiply
1,259,288.72x = 1,738,482.92 × 1,011,589.28 - Step 4: Simplify right side
1,259,288.72x = 1,758,630,685,335.10 - Step 5: Solve for x
x = 1,758,630,685,335.10/1,259,288.72 - Step 6: Final answer
x = 1,396,526.99
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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.