Finding the Fourth Proportional to 390,503.68, 585,149.65 and 270,794.14
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Solution
The fourth proportional to 390,503.68, 585,149.65 and 270,794.14 is: 405,771.07
Step by Step Solution
- Step 1: Write the proportion equation
390,503.68 : 585,149.65 = 270,794.14 : x - Step 2: Convert to fraction form
390,503.68/585,149.65 = 270,794.14/x - Step 3: Cross multiply
390,503.68x = 585,149.65 × 270,794.14 - Step 4: Simplify right side
390,503.68x = 158,455,094,103.19 - Step 5: Solve for x
x = 158,455,094,103.19/390,503.68 - Step 6: Final answer
x = 405,771.07
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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.