Finding the Fourth Proportional to 418,378.84, 577,411.68 and 248,612.92
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Solution
The fourth proportional to 418,378.84, 577,411.68 and 248,612.92 is: 343,114.88
Step by Step Solution
- Step 1: Write the proportion equation
418,378.84 : 577,411.68 = 248,612.92 : x - Step 2: Convert to fraction form
418,378.84/577,411.68 = 248,612.92/x - Step 3: Cross multiply
418,378.84x = 577,411.68 × 248,612.92 - Step 4: Simplify right side
418,378.84x = 143,552,003,806.91 - Step 5: Solve for x
x = 143,552,003,806.91/418,378.84 - Step 6: Final answer
x = 343,114.88
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1.5x scale
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.