Finding the Fourth Proportional to 1,340,785.15, 1,850,320.01 and 728,979.09
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Solution
The fourth proportional to 1,340,785.15, 1,850,320.01 and 728,979.09 is: 1,006,010.99
Step by Step Solution
- Step 1: Write the proportion equation
1,340,785.15 : 1,850,320.01 = 728,979.09 : x - Step 2: Convert to fraction form
1,340,785.15/1,850,320.01 = 728,979.09/x - Step 3: Cross multiply
1,340,785.15x = 1,850,320.01 × 728,979.09 - Step 4: Simplify right side
1,340,785.15x = 1,348,844,598,289.88 - Step 5: Solve for x
x = 1,348,844,598,289.88/1,340,785.15 - Step 6: Final answer
x = 1,006,010.99
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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.