Finding the Fourth Proportional to 1,418,951.10, 2,128,426.65 and 1,395,623.10
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Solution
The fourth proportional to 1,418,951.10, 2,128,426.65 and 1,395,623.10 is: 2,093,434.65
Step by Step Solution
- Step 1: Write the proportion equation
1,418,951.10 : 2,128,426.65 = 1,395,623.10 : x - Step 2: Convert to fraction form
1,418,951.10/2,128,426.65 = 1,395,623.10/x - Step 3: Cross multiply
1,418,951.10x = 2,128,426.65 × 1,395,623.10 - Step 4: Simplify right side
1,418,951.10x = 2,970,481,399,395.62 - Step 5: Solve for x
x = 2,970,481,399,395.62/1,418,951.10 - Step 6: Final answer
x = 2,093,434.65
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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.