Finding the Fourth Proportional to 1,241,087.40, 1,712,642.94 and 689,777.46
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Solution
The fourth proportional to 1,241,087.40, 1,712,642.94 and 689,777.46 is: 951,860.84
Step by Step Solution
- Step 1: Write the proportion equation
1,241,087.40 : 1,712,642.94 = 689,777.46 : x - Step 2: Convert to fraction form
1,241,087.40/1,712,642.94 = 689,777.46/x - Step 3: Cross multiply
1,241,087.40x = 1,712,642.94 × 689,777.46 - Step 4: Simplify right side
1,241,087.40x = 1,181,342,497,040.13 - Step 5: Solve for x
x = 1,181,342,497,040.13/1,241,087.40 - Step 6: Final answer
x = 951,860.84
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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.