Finding the Fourth Proportional to 1,340,785.73, 1,850,320.80 and 728,979.68
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Solution
The fourth proportional to 1,340,785.73, 1,850,320.80 and 728,979.68 is: 1,006,011.80
Step by Step Solution
- Step 1: Write the proportion equation
1,340,785.73 : 1,850,320.80 = 728,979.68 : x - Step 2: Convert to fraction form
1,340,785.73/1,850,320.80 = 728,979.68/x - Step 3: Cross multiply
1,340,785.73x = 1,850,320.80 × 728,979.68 - Step 4: Simplify right side
1,340,785.73x = 1,348,846,269,307.15 - Step 5: Solve for x
x = 1,348,846,269,307.15/1,340,785.73 - Step 6: Final answer
x = 1,006,011.80
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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.