Finding the Fourth Proportional to 390,095.12, 585,327.72 and 270,336.26
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Solution
The fourth proportional to 390,095.12, 585,327.72 and 270,336.26 is: 405,632.62
Step by Step Solution
- Step 1: Write the proportion equation
390,095.12 : 585,327.72 = 270,336.26 : x - Step 2: Convert to fraction form
390,095.12/585,327.72 = 270,336.26/x - Step 3: Cross multiply
390,095.12x = 585,327.72 × 270,336.26 - Step 4: Simplify right side
390,095.12x = 158,235,306,699.13 - Step 5: Solve for x
x = 158,235,306,699.13/390,095.12 - Step 6: Final answer
x = 405,632.62
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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.