Finding the Fourth Proportional to 432,132.80, 648,199.20 and 405,867.20
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Solution
The fourth proportional to 432,132.80, 648,199.20 and 405,867.20 is: 608,800.80
Step by Step Solution
- Step 1: Write the proportion equation
432,132.80 : 648,199.20 = 405,867.20 : x - Step 2: Convert to fraction form
432,132.80/648,199.20 = 405,867.20/x - Step 3: Cross multiply
432,132.80x = 648,199.20 × 405,867.20 - Step 4: Simplify right side
432,132.80x = 263,082,794,346.24 - Step 5: Solve for x
x = 263,082,794,346.24/432,132.80 - Step 6: Final answer
x = 608,800.80
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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.