Finding the Fourth Proportional to 1,264,419.84, 1,744,929.68 and 720,544
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Solution
The fourth proportional to 1,264,419.84, 1,744,929.68 and 720,544 is: 994,367.99
Step by Step Solution
- Step 1: Write the proportion equation
1,264,419.84 : 1,744,929.68 = 720,544 : x - Step 2: Convert to fraction form
1,264,419.84/1,744,929.68 = 720,544/x - Step 3: Cross multiply
1,264,419.84x = 1,744,929.68 × 720,544 - Step 4: Simplify right side
1,264,419.84x = 1,257,298,611,345.92 - Step 5: Solve for x
x = 1,257,298,611,345.92/1,264,419.84 - Step 6: Final answer
x = 994,367.99
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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.