Finding the Fourth Proportional to 1,888,341.75, 2,605,911.90 and 1,028,902.08
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Solution
The fourth proportional to 1,888,341.75, 2,605,911.90 and 1,028,902.08 is: 1,419,885.03
Step by Step Solution
- Step 1: Write the proportion equation
1,888,341.75 : 2,605,911.90 = 1,028,902.08 : x - Step 2: Convert to fraction form
1,888,341.75/2,605,911.90 = 1,028,902.08/x - Step 3: Cross multiply
1,888,341.75x = 2,605,911.90 × 1,028,902.08 - Step 4: Simplify right side
1,888,341.75x = 2,681,228,174,206.75 - Step 5: Solve for x
x = 2,681,228,174,206.75/1,888,341.75 - Step 6: Final answer
x = 1,419,885.03
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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.