Finding the Fourth Proportional to 1,400,703.12, 2,087,730.36 and 1,320,979.68
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Solution
The fourth proportional to 1,400,703.12, 2,087,730.36 and 1,320,979.68 is: 1,968,903.58
Step by Step Solution
- Step 1: Write the proportion equation
1,400,703.12 : 2,087,730.36 = 1,320,979.68 : x - Step 2: Convert to fraction form
1,400,703.12/2,087,730.36 = 1,320,979.68/x - Step 3: Cross multiply
1,400,703.12x = 2,087,730.36 × 1,320,979.68 - Step 4: Simplify right side
1,400,703.12x = 2,757,849,382,879.09 - Step 5: Solve for x
x = 2,757,849,382,879.09/1,400,703.12 - Step 6: Final answer
x = 1,968,903.58
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.