Finding the Fourth Proportional to 1,918,188.81, 2,647,122.51 and 1,058,749.74
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Solution
The fourth proportional to 1,918,188.81, 2,647,122.51 and 1,058,749.74 is: 1,461,086.76
Step by Step Solution
- Step 1: Write the proportion equation
1,918,188.81 : 2,647,122.51 = 1,058,749.74 : x - Step 2: Convert to fraction form
1,918,188.81/2,647,122.51 = 1,058,749.74/x - Step 3: Cross multiply
1,918,188.81x = 2,647,122.51 × 1,058,749.74 - Step 4: Simplify right side
1,918,188.81x = 2,802,640,269,210.65 - Step 5: Solve for x
x = 2,802,640,269,210.65/1,918,188.81 - Step 6: Final answer
x = 1,461,086.76
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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.