Finding the Fourth Proportional to 777,403.05, 1,072,852.73 and 455,216.94
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Solution
The fourth proportional to 777,403.05, 1,072,852.73 and 455,216.94 is: 628,220.76
Step by Step Solution
- Step 1: Write the proportion equation
777,403.05 : 1,072,852.73 = 455,216.94 : x - Step 2: Convert to fraction form
777,403.05/1,072,852.73 = 455,216.94/x - Step 3: Cross multiply
777,403.05x = 1,072,852.73 × 455,216.94 - Step 4: Simplify right side
777,403.05x = 488,380,736,252.23 - Step 5: Solve for x
x = 488,380,736,252.23/777,403.05 - Step 6: Final answer
x = 628,220.76
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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.