Finding the Fourth Proportional to 2,991,554.13, 4,128,355.65 and 1,633,427.13
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Solution
The fourth proportional to 2,991,554.13, 4,128,355.65 and 1,633,427.13 is: 2,254,135.42
Step by Step Solution
- Step 1: Write the proportion equation
2,991,554.13 : 4,128,355.65 = 1,633,427.13 : x - Step 2: Convert to fraction form
2,991,554.13/4,128,355.65 = 1,633,427.13/x - Step 3: Cross multiply
2,991,554.13x = 4,128,355.65 × 1,633,427.13 - Step 4: Simplify right side
2,991,554.13x = 6,743,368,120,998.78 - Step 5: Solve for x
x = 6,743,368,120,998.78/2,991,554.13 - Step 6: Final answer
x = 2,254,135.42
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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.