Finding the Fourth Proportional to 1,264,415.84, 1,744,924.16 and 720,540
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Solution
The fourth proportional to 1,264,415.84, 1,744,924.16 and 720,540 is: 994,362.47
Step by Step Solution
- Step 1: Write the proportion equation
1,264,415.84 : 1,744,924.16 = 720,540 : x - Step 2: Convert to fraction form
1,264,415.84/1,744,924.16 = 720,540/x - Step 3: Cross multiply
1,264,415.84x = 1,744,924.16 × 720,540 - Step 4: Simplify right side
1,264,415.84x = 1,257,287,654,246.40 - Step 5: Solve for x
x = 1,257,287,654,246.40/1,264,415.84 - Step 6: Final answer
x = 994,362.47
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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.