Finding the Fourth Proportional to 2,821,373.48, 3,894,686.88 and 1,904,844.18
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Solution
The fourth proportional to 2,821,373.48, 3,894,686.88 and 1,904,844.18 is: 2,629,489.39
Step by Step Solution
- Step 1: Write the proportion equation
2,821,373.48 : 3,894,686.88 = 1,904,844.18 : x - Step 2: Convert to fraction form
2,821,373.48/3,894,686.88 = 1,904,844.18/x - Step 3: Cross multiply
2,821,373.48x = 3,894,686.88 × 1,904,844.18 - Step 4: Simplify right side
2,821,373.48x = 7,418,771,636,290.36 - Step 5: Solve for x
x = 7,418,771,636,290.36/2,821,373.48 - Step 6: Final answer
x = 2,629,489.39
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1.5x scale
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.