Finding the Fourth Proportional to 1,289,340.36, 1,777,441.86 and 906,177.96
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Solution
The fourth proportional to 1,289,340.36, 1,777,441.86 and 906,177.96 is: 1,249,226.88
Step by Step Solution
- Step 1: Write the proportion equation
1,289,340.36 : 1,777,441.86 = 906,177.96 : x - Step 2: Convert to fraction form
1,289,340.36/1,777,441.86 = 906,177.96/x - Step 3: Cross multiply
1,289,340.36x = 1,777,441.86 × 906,177.96 - Step 4: Simplify right side
1,289,340.36x = 1,610,678,638,713.41 - Step 5: Solve for x
x = 1,610,678,638,713.41/1,289,340.36 - Step 6: Final answer
x = 1,249,226.88
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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.