Finding the Fourth Proportional to 326,588.47, 489,913.68 and 126,924.28
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Solution
The fourth proportional to 326,588.47, 489,913.68 and 126,924.28 is: 190,398.46
Step by Step Solution
- Step 1: Write the proportion equation
326,588.47 : 489,913.68 = 126,924.28 : x - Step 2: Convert to fraction form
326,588.47/489,913.68 = 126,924.28/x - Step 3: Cross multiply
326,588.47x = 489,913.68 × 126,924.28 - Step 4: Simplify right side
326,588.47x = 62,181,941,096.15 - Step 5: Solve for x
x = 62,181,941,096.15/326,588.47 - Step 6: Final answer
x = 190,398.46
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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.