Finding the Fourth Proportional to 1,559,163.90, 2,335,246.65 and 1,279,227.90
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Solution
The fourth proportional to 1,559,163.90, 2,335,246.65 and 1,279,227.90 is: 1,915,970.90
Step by Step Solution
- Step 1: Write the proportion equation
1,559,163.90 : 2,335,246.65 = 1,279,227.90 : x - Step 2: Convert to fraction form
1,559,163.90/2,335,246.65 = 1,279,227.90/x - Step 3: Cross multiply
1,559,163.90x = 2,335,246.65 × 1,279,227.90 - Step 4: Simplify right side
1,559,163.90x = 2,987,312,668,061.53 - Step 5: Solve for x
x = 2,987,312,668,061.53/1,559,163.90 - Step 6: Final answer
x = 1,915,970.90
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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.