Finding the Fourth Proportional to 1,279,373.06, 1,765,543.38 and 698,600.23
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Solution
The fourth proportional to 1,279,373.06, 1,765,543.38 and 698,600.23 is: 964,072.99
Step by Step Solution
- Step 1: Write the proportion equation
1,279,373.06 : 1,765,543.38 = 698,600.23 : x - Step 2: Convert to fraction form
1,279,373.06/1,765,543.38 = 698,600.23/x - Step 3: Cross multiply
1,279,373.06x = 1,765,543.38 × 698,600.23 - Step 4: Simplify right side
1,279,373.06x = 1,233,409,011,342.98 - Step 5: Solve for x
x = 1,233,409,011,342.98/1,279,373.06 - Step 6: Final answer
x = 964,072.99
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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.