Finding the Fourth Proportional to 1,930,954.73, 2,664,778.64 and 1,115,143.65
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Solution
The fourth proportional to 1,930,954.73, 2,664,778.64 and 1,115,143.65 is: 1,538,933.53
Step by Step Solution
- Step 1: Write the proportion equation
1,930,954.73 : 2,664,778.64 = 1,115,143.65 : x - Step 2: Convert to fraction form
1,930,954.73/2,664,778.64 = 1,115,143.65/x - Step 3: Cross multiply
1,930,954.73x = 2,664,778.64 × 1,115,143.65 - Step 4: Simplify right side
1,930,954.73x = 2,971,610,973,475.92 - Step 5: Solve for x
x = 2,971,610,973,475.92/1,930,954.73 - Step 6: Final answer
x = 1,538,933.53
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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.