Finding the Fourth Proportional to 1,412,393.40, 2,115,090.90 and 906,175.80
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Solution
The fourth proportional to 1,412,393.40, 2,115,090.90 and 906,175.80 is: 1,357,018.65
Step by Step Solution
- Step 1: Write the proportion equation
1,412,393.40 : 2,115,090.90 = 906,175.80 : x - Step 2: Convert to fraction form
1,412,393.40/2,115,090.90 = 906,175.80/x - Step 3: Cross multiply
1,412,393.40x = 2,115,090.90 × 906,175.80 - Step 4: Simplify right side
1,412,393.40x = 1,916,644,188,380.22 - Step 5: Solve for x
x = 1,916,644,188,380.22/1,412,393.40 - Step 6: Final answer
x = 1,357,018.65
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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.