Finding the Fourth Proportional to 1,138,705.06, 1,571,444.73 and 629,440.18
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Solution
The fourth proportional to 1,138,705.06, 1,571,444.73 and 629,440.18 is: 868,645.00
Step by Step Solution
- Step 1: Write the proportion equation
1,138,705.06 : 1,571,444.73 = 629,440.18 : x - Step 2: Convert to fraction form
1,138,705.06/1,571,444.73 = 629,440.18/x - Step 3: Cross multiply
1,138,705.06x = 1,571,444.73 × 629,440.18 - Step 4: Simplify right side
1,138,705.06x = 989,130,453,711.25 - Step 5: Solve for x
x = 989,130,453,711.25/1,138,705.06 - Step 6: Final answer
x = 868,645.00
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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.