Finding the Fourth Proportional to 1,422,785.28, 1,963,506.48 and 819,367.68
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Solution
The fourth proportional to 1,422,785.28, 1,963,506.48 and 819,367.68 is: 1,130,763.56
Step by Step Solution
- Step 1: Write the proportion equation
1,422,785.28 : 1,963,506.48 = 819,367.68 : x - Step 2: Convert to fraction form
1,422,785.28/1,963,506.48 = 819,367.68/x - Step 3: Cross multiply
1,422,785.28x = 1,963,506.48 × 819,367.68 - Step 4: Simplify right side
1,422,785.28x = 1,608,833,749,182.57 - Step 5: Solve for x
x = 1,608,833,749,182.57/1,422,785.28 - Step 6: Final answer
x = 1,130,763.56
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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.