Finding the Fourth Proportional to 740,855.20, 1,022,547.36 and 418,751.68
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Solution
The fourth proportional to 740,855.20, 1,022,547.36 and 418,751.68 is: 577,971.82
Step by Step Solution
- Step 1: Write the proportion equation
740,855.20 : 1,022,547.36 = 418,751.68 : x - Step 2: Convert to fraction form
740,855.20/1,022,547.36 = 418,751.68/x - Step 3: Cross multiply
740,855.20x = 1,022,547.36 × 418,751.68 - Step 4: Simplify right side
740,855.20x = 428,193,424,879.57 - Step 5: Solve for x
x = 428,193,424,879.57/740,855.20 - Step 6: Final answer
x = 577,971.82
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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.