Finding the Fourth Proportional to 521,842.58, 720,130.58 and 306,996.48
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Solution
The fourth proportional to 521,842.58, 720,130.58 and 306,996.48 is: 423,647.98
Step by Step Solution
- Step 1: Write the proportion equation
521,842.58 : 720,130.58 = 306,996.48 : x - Step 2: Convert to fraction form
521,842.58/720,130.58 = 306,996.48/x - Step 3: Cross multiply
521,842.58x = 720,130.58 × 306,996.48 - Step 4: Simplify right side
521,842.58x = 221,077,551,953.19 - Step 5: Solve for x
x = 221,077,551,953.19/521,842.58 - Step 6: Final answer
x = 423,647.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.