Finding the Fourth Proportional to 1,543,908.12, 2,130,569.80 and 864,868.92
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Solution
The fourth proportional to 1,543,908.12, 2,130,569.80 and 864,868.92 is: 1,193,506.00
Step by Step Solution
- Step 1: Write the proportion equation
1,543,908.12 : 2,130,569.80 = 864,868.92 : x - Step 2: Convert to fraction form
1,543,908.12/2,130,569.80 = 864,868.92/x - Step 3: Cross multiply
1,543,908.12x = 2,130,569.80 × 864,868.92 - Step 4: Simplify right side
1,543,908.12x = 1,842,663,601,910.62 - Step 5: Solve for x
x = 1,842,663,601,910.62/1,543,908.12 - Step 6: Final answer
x = 1,193,506.00
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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.