Finding the Fourth Proportional to 2,046,785.76, 2,824,431.12 and 1,128,959.64
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Solution
The fourth proportional to 2,046,785.76, 2,824,431.12 and 1,128,959.64 is: 1,557,890.82
Step by Step Solution
- Step 1: Write the proportion equation
2,046,785.76 : 2,824,431.12 = 1,128,959.64 : x - Step 2: Convert to fraction form
2,046,785.76/2,824,431.12 = 1,128,959.64/x - Step 3: Cross multiply
2,046,785.76x = 2,824,431.12 × 1,128,959.64 - Step 4: Simplify right side
2,046,785.76x = 3,188,668,740,440.00 - Step 5: Solve for x
x = 3,188,668,740,440.00/2,046,785.76 - Step 6: Final answer
x = 1,557,890.82
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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.