Finding the Fourth Proportional to 390,783.24, 585,706.14 and 201,333.96
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Solution
The fourth proportional to 390,783.24, 585,706.14 and 201,333.96 is: 301,759.45
Step by Step Solution
- Step 1: Write the proportion equation
390,783.24 : 585,706.14 = 201,333.96 : x - Step 2: Convert to fraction form
390,783.24/585,706.14 = 201,333.96/x - Step 3: Cross multiply
390,783.24x = 585,706.14 × 201,333.96 - Step 4: Simplify right side
390,783.24x = 117,922,536,562.51 - Step 5: Solve for x
x = 117,922,536,562.51/390,783.24 - Step 6: Final answer
x = 301,759.45
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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.