Finding the Fourth Proportional to 419,089.74, 578,346.24 and 228,102.67
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Solution
The fourth proportional to 419,089.74, 578,346.24 and 228,102.67 is: 314,782.99
Step by Step Solution
- Step 1: Write the proportion equation
419,089.74 : 578,346.24 = 228,102.67 : x - Step 2: Convert to fraction form
419,089.74/578,346.24 = 228,102.67/x - Step 3: Cross multiply
419,089.74x = 578,346.24 × 228,102.67 - Step 4: Simplify right side
419,089.74x = 131,922,321,528.46 - Step 5: Solve for x
x = 131,922,321,528.46/419,089.74 - Step 6: Final answer
x = 314,782.99
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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.