Finding the Fourth Proportional to 842,745.06, 1,162,703.28 and 479,911.65
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Solution
The fourth proportional to 842,745.06, 1,162,703.28 and 479,911.65 is: 662,115.84
Step by Step Solution
- Step 1: Write the proportion equation
842,745.06 : 1,162,703.28 = 479,911.65 : x - Step 2: Convert to fraction form
842,745.06/1,162,703.28 = 479,911.65/x - Step 3: Cross multiply
842,745.06x = 1,162,703.28 × 479,911.65 - Step 4: Simplify right side
842,745.06x = 557,994,849,565.21 - Step 5: Solve for x
x = 557,994,849,565.21/842,745.06 - Step 6: Final answer
x = 662,115.84
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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.