Finding the Fourth Proportional to 2,129,850.99, 2,939,079.74 and 1,162,966.95
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Solution
The fourth proportional to 2,129,850.99, 2,939,079.74 and 1,162,966.95 is: 1,604,831.80
Step by Step Solution
- Step 1: Write the proportion equation
2,129,850.99 : 2,939,079.74 = 1,162,966.95 : x - Step 2: Convert to fraction form
2,129,850.99/2,939,079.74 = 1,162,966.95/x - Step 3: Cross multiply
2,129,850.99x = 2,939,079.74 × 1,162,966.95 - Step 4: Simplify right side
2,129,850.99x = 3,418,052,595,219.76 - Step 5: Solve for x
x = 3,418,052,595,219.76/2,129,850.99 - Step 6: Final answer
x = 1,604,831.80
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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.