Finding the Fourth Proportional to 777,348, 1,073,008.71 and 455,161.68
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Solution
The fourth proportional to 777,348, 1,073,008.71 and 455,161.68 is: 628,280.32
Step by Step Solution
- Step 1: Write the proportion equation
777,348 : 1,073,008.71 = 455,161.68 : x - Step 2: Convert to fraction form
777,348/1,073,008.71 = 455,161.68/x - Step 3: Cross multiply
777,348x = 1,073,008.71 × 455,161.68 - Step 4: Simplify right side
777,348x = 488,392,447,098.23 - Step 5: Solve for x
x = 488,392,447,098.23/777,348 - Step 6: Final answer
x = 628,280.32
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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.