Finding the Fourth Proportional to 2,115,554.74, 2,919,383.69 and 1,148,662.91
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Solution
The fourth proportional to 2,115,554.74, 2,919,383.69 and 1,148,662.91 is: 1,585,110.38
Step by Step Solution
- Step 1: Write the proportion equation
2,115,554.74 : 2,919,383.69 = 1,148,662.91 : x - Step 2: Convert to fraction form
2,115,554.74/2,919,383.69 = 1,148,662.91/x - Step 3: Cross multiply
2,115,554.74x = 2,919,383.69 × 1,148,662.91 - Step 4: Simplify right side
2,115,554.74x = 3,353,387,766,317.08 - Step 5: Solve for x
x = 3,353,387,766,317.08/2,115,554.74 - Step 6: Final answer
x = 1,585,110.38
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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.