Finding the Fourth Proportional to 1,313,831.40, 1,813,089.99 and 710,219.40
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Solution
The fourth proportional to 1,313,831.40, 1,813,089.99 and 710,219.40 is: 980,104.21
Step by Step Solution
- Step 1: Write the proportion equation
1,313,831.40 : 1,813,089.99 = 710,219.40 : x - Step 2: Convert to fraction form
1,313,831.40/1,813,089.99 = 710,219.40/x - Step 3: Cross multiply
1,313,831.40x = 1,813,089.99 × 710,219.40 - Step 4: Simplify right side
1,313,831.40x = 1,287,691,684,843.81 - Step 5: Solve for x
x = 1,287,691,684,843.81/1,313,831.40 - Step 6: Final answer
x = 980,104.21
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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.