Finding the Fourth Proportional to 1,252,712.97, 1,878,149.37 and 399,293.31
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Solution
The fourth proportional to 1,252,712.97, 1,878,149.37 and 399,293.31 is: 598,646.69
Step by Step Solution
- Step 1: Write the proportion equation
1,252,712.97 : 1,878,149.37 = 399,293.31 : x - Step 2: Convert to fraction form
1,252,712.97/1,878,149.37 = 399,293.31/x - Step 3: Cross multiply
1,252,712.97x = 1,878,149.37 × 399,293.31 - Step 4: Simplify right side
1,252,712.97x = 749,932,478,621.72 - Step 5: Solve for x
x = 749,932,478,621.72/1,252,712.97 - Step 6: Final answer
x = 598,646.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.