Finding the Fourth Proportional to 1,872,556.80, 2,801,836.80 and 1,242,700.80
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Solution
The fourth proportional to 1,872,556.80, 2,801,836.80 and 1,242,700.80 is: 1,859,406.79
Step by Step Solution
- Step 1: Write the proportion equation
1,872,556.80 : 2,801,836.80 = 1,242,700.80 : x - Step 2: Convert to fraction form
1,872,556.80/2,801,836.80 = 1,242,700.80/x - Step 3: Cross multiply
1,872,556.80x = 2,801,836.80 × 1,242,700.80 - Step 4: Simplify right side
1,872,556.80x = 3,481,844,832,829.44 - Step 5: Solve for x
x = 3,481,844,832,829.44/1,872,556.80 - Step 6: Final answer
x = 1,859,406.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.