Finding the Fourth Proportional to 1,873,412.21, 2,585,371.42 and 1,148,119.79
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Solution
The fourth proportional to 1,873,412.21, 2,585,371.42 and 1,148,119.79 is: 1,584,443.66
Step by Step Solution
- Step 1: Write the proportion equation
1,873,412.21 : 2,585,371.42 = 1,148,119.79 : x - Step 2: Convert to fraction form
1,873,412.21/2,585,371.42 = 1,148,119.79/x - Step 3: Cross multiply
1,873,412.21x = 2,585,371.42 × 1,148,119.79 - Step 4: Simplify right side
1,873,412.21x = 2,968,316,081,745.84 - Step 5: Solve for x
x = 2,968,316,081,745.84/1,873,412.21 - Step 6: Final answer
x = 1,584,443.66
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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.