Finding the Fourth Proportional to 1,509,868.10, 2,083,555.52 and 821,542.80
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Solution
The fourth proportional to 1,509,868.10, 2,083,555.52 and 821,542.80 is: 1,133,695.08
Step by Step Solution
- Step 1: Write the proportion equation
1,509,868.10 : 2,083,555.52 = 821,542.80 : x - Step 2: Convert to fraction form
1,509,868.10/2,083,555.52 = 821,542.80/x - Step 3: Cross multiply
1,509,868.10x = 2,083,555.52 × 821,542.80 - Step 4: Simplify right side
1,509,868.10x = 1,711,730,035,856.26 - Step 5: Solve for x
x = 1,711,730,035,856.26/1,509,868.10 - Step 6: Final answer
x = 1,133,695.08
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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.