Finding the Fourth Proportional to 1,538,288.15, 2,122,937.64 and 849,960.09
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Solution
The fourth proportional to 1,538,288.15, 2,122,937.64 and 849,960.09 is: 1,173,000.17
Step by Step Solution
- Step 1: Write the proportion equation
1,538,288.15 : 2,122,937.64 = 849,960.09 : x - Step 2: Convert to fraction form
1,538,288.15/2,122,937.64 = 849,960.09/x - Step 3: Cross multiply
1,538,288.15x = 2,122,937.64 × 849,960.09 - Step 4: Simplify right side
1,538,288.15x = 1,804,412,267,558.79 - Step 5: Solve for x
x = 1,804,412,267,558.79/1,538,288.15 - Step 6: Final answer
x = 1,173,000.17
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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.