Finding the Fourth Proportional to 1,538,289.84, 2,122,939.97 and 849,961.78
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Solution
The fourth proportional to 1,538,289.84, 2,122,939.97 and 849,961.78 is: 1,173,002.50
Step by Step Solution
- Step 1: Write the proportion equation
1,538,289.84 : 2,122,939.97 = 849,961.78 : x - Step 2: Convert to fraction form
1,538,289.84/2,122,939.97 = 849,961.78/x - Step 3: Cross multiply
1,538,289.84x = 2,122,939.97 × 849,961.78 - Step 4: Simplify right side
1,538,289.84x = 1,804,417,835,734.35 - Step 5: Solve for x
x = 1,804,417,835,734.35/1,538,289.84 - Step 6: Final answer
x = 1,173,002.50
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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.