Finding the Fourth Proportional to 2,686,129.36, 3,706,746.56 and 1,478,827.60
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Solution
The fourth proportional to 2,686,129.36, 3,706,746.56 and 1,478,827.60 is: 2,040,720.45
Step by Step Solution
- Step 1: Write the proportion equation
2,686,129.36 : 3,706,746.56 = 1,478,827.60 : x - Step 2: Convert to fraction form
2,686,129.36/3,706,746.56 = 1,478,827.60/x - Step 3: Cross multiply
2,686,129.36x = 3,706,746.56 × 1,478,827.60 - Step 4: Simplify right side
2,686,129.36x = 5,481,639,119,133.06 - Step 5: Solve for x
x = 5,481,639,119,133.06/2,686,129.36 - Step 6: Final answer
x = 2,040,720.45
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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.