Finding the Fourth Proportional to 1,423,629.80, 2,135,444.70 and 476,685.80
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Solution
The fourth proportional to 1,423,629.80, 2,135,444.70 and 476,685.80 is: 715,028.70
Step by Step Solution
- Step 1: Write the proportion equation
1,423,629.80 : 2,135,444.70 = 476,685.80 : x - Step 2: Convert to fraction form
1,423,629.80/2,135,444.70 = 476,685.80/x - Step 3: Cross multiply
1,423,629.80x = 2,135,444.70 × 476,685.80 - Step 4: Simplify right side
1,423,629.80x = 1,017,936,165,175.26 - Step 5: Solve for x
x = 1,017,936,165,175.26/1,423,629.80 - Step 6: Final answer
x = 715,028.70
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1.5x scale
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.