Finding the Fourth Proportional to 1,415,328.38, 1,953,235.25 and 1,065,843.09
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Solution
The fourth proportional to 1,415,328.38, 1,953,235.25 and 1,065,843.09 is: 1,470,925.28
Step by Step Solution
- Step 1: Write the proportion equation
1,415,328.38 : 1,953,235.25 = 1,065,843.09 : x - Step 2: Convert to fraction form
1,415,328.38/1,953,235.25 = 1,065,843.09/x - Step 3: Cross multiply
1,415,328.38x = 1,953,235.25 × 1,065,843.09 - Step 4: Simplify right side
1,415,328.38x = 2,081,842,289,027.71 - Step 5: Solve for x
x = 2,081,842,289,027.71/1,415,328.38 - Step 6: Final answer
x = 1,470,925.28
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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.