Finding the Fourth Proportional to 745,919.70, 1,118,879.55 and 213,458.10
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Solution
The fourth proportional to 745,919.70, 1,118,879.55 and 213,458.10 is: 320,187.15
Step by Step Solution
- Step 1: Write the proportion equation
745,919.70 : 1,118,879.55 = 213,458.10 : x - Step 2: Convert to fraction form
745,919.70/1,118,879.55 = 213,458.10/x - Step 3: Cross multiply
745,919.70x = 1,118,879.55 × 213,458.10 - Step 4: Simplify right side
745,919.70x = 238,833,902,871.86 - Step 5: Solve for x
x = 238,833,902,871.86/745,919.70 - Step 6: Final answer
x = 320,187.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.