Finding the Fourth Proportional to 485,395.06, 728,197.69 and 185,875.65
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Solution
The fourth proportional to 485,395.06, 728,197.69 and 185,875.65 is: 278,853.72
Step by Step Solution
- Step 1: Write the proportion equation
485,395.06 : 728,197.69 = 185,875.65 : x - Step 2: Convert to fraction form
485,395.06/728,197.69 = 185,875.65/x - Step 3: Cross multiply
485,395.06x = 728,197.69 × 185,875.65 - Step 4: Simplify right side
485,395.06x = 135,354,218,957.25 - Step 5: Solve for x
x = 135,354,218,957.25/485,395.06 - Step 6: Final answer
x = 278,853.72
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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.