Finding the Fourth Proportional to 455,574.51, 684,064.10 and 385,418.99
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Solution
The fourth proportional to 455,574.51, 684,064.10 and 385,418.99 is: 578,722.67
Step by Step Solution
- Step 1: Write the proportion equation
455,574.51 : 684,064.10 = 385,418.99 : x - Step 2: Convert to fraction form
455,574.51/684,064.10 = 385,418.99/x - Step 3: Cross multiply
455,574.51x = 684,064.10 × 385,418.99 - Step 4: Simplify right side
455,574.51x = 263,651,297,190.97 - Step 5: Solve for x
x = 263,651,297,190.97/455,574.51 - Step 6: Final answer
x = 578,722.67
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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.