Finding the Fourth Proportional to 518,420.25, 777,337.29 and 214,642.62
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Solution
The fourth proportional to 518,420.25, 777,337.29 and 214,642.62 is: 321,842.58
Step by Step Solution
- Step 1: Write the proportion equation
518,420.25 : 777,337.29 = 214,642.62 : x - Step 2: Convert to fraction form
518,420.25/777,337.29 = 214,642.62/x - Step 3: Cross multiply
518,420.25x = 777,337.29 × 214,642.62 - Step 4: Simplify right side
518,420.25x = 166,849,712,549.30 - Step 5: Solve for x
x = 166,849,712,549.30/518,420.25 - Step 6: Final answer
x = 321,842.58
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1.5x scale
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.