Finding the Fourth Proportional to 1,986,014.70, 2,740,619.58 and 1,126,556.51
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Solution
The fourth proportional to 1,986,014.70, 2,740,619.58 and 1,126,556.51 is: 1,554,602.20
Step by Step Solution
- Step 1: Write the proportion equation
1,986,014.70 : 2,740,619.58 = 1,126,556.51 : x - Step 2: Convert to fraction form
1,986,014.70/2,740,619.58 = 1,126,556.51/x - Step 3: Cross multiply
1,986,014.70x = 2,740,619.58 × 1,126,556.51 - Step 4: Simplify right side
1,986,014.70x = 3,087,462,829,282.47 - Step 5: Solve for x
x = 3,087,462,829,282.47/1,986,014.70 - Step 6: Final answer
x = 1,554,602.20
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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.