Finding the Fourth Proportional to 1,618,831.05, 2,428,246.58 and 779,023.05
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Solution
The fourth proportional to 1,618,831.05, 2,428,246.58 and 779,023.05 is: 1,168,534.58
Step by Step Solution
- Step 1: Write the proportion equation
1,618,831.05 : 2,428,246.58 = 779,023.05 : x - Step 2: Convert to fraction form
1,618,831.05/2,428,246.58 = 779,023.05/x - Step 3: Cross multiply
1,618,831.05x = 2,428,246.58 × 779,023.05 - Step 4: Simplify right side
1,618,831.05x = 1,891,660,053,008.55 - Step 5: Solve for x
x = 1,891,660,053,008.55/1,618,831.05 - Step 6: Final answer
x = 1,168,534.58
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1.5x scale
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.