Finding the Fourth Proportional to 1,252,688.80, 1,728,705.36 and 743,810.08
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Solution
The fourth proportional to 1,252,688.80, 1,728,705.36 and 743,810.08 is: 1,026,454.83
Step by Step Solution
- Step 1: Write the proportion equation
1,252,688.80 : 1,728,705.36 = 743,810.08 : x - Step 2: Convert to fraction form
1,252,688.80/1,728,705.36 = 743,810.08/x - Step 3: Cross multiply
1,252,688.80x = 1,728,705.36 × 743,810.08 - Step 4: Simplify right side
1,252,688.80x = 1,285,828,472,118.03 - Step 5: Solve for x
x = 1,285,828,472,118.03/1,252,688.80 - Step 6: Final answer
x = 1,026,454.83
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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.