Finding the Fourth Proportional to 419,389.99, 578,257.29 and 342,626.29
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Solution
The fourth proportional to 419,389.99, 578,257.29 and 342,626.29 is: 472,415.07
Step by Step Solution
- Step 1: Write the proportion equation
419,389.99 : 578,257.29 = 342,626.29 : x - Step 2: Convert to fraction form
419,389.99/578,257.29 = 342,626.29/x - Step 3: Cross multiply
419,389.99x = 578,257.29 × 342,626.29 - Step 4: Simplify right side
419,389.99x = 198,126,148,492.51 - Step 5: Solve for x
x = 198,126,148,492.51/419,389.99 - Step 6: Final answer
x = 472,415.07
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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.