Finding the Fourth Proportional to 485,398.59, 728,202.99 and 185,879.19
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Solution
The fourth proportional to 485,398.59, 728,202.99 and 185,879.19 is: 278,859.03
Step by Step Solution
- Step 1: Write the proportion equation
485,398.59 : 728,202.99 = 185,879.19 : x - Step 2: Convert to fraction form
485,398.59/728,202.99 = 185,879.19/x - Step 3: Cross multiply
485,398.59x = 728,202.99 × 185,879.19 - Step 4: Simplify right side
485,398.59x = 135,357,781,936.78 - Step 5: Solve for x
x = 135,357,781,936.78/485,398.59 - Step 6: Final answer
x = 278,859.03
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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.