Finding the Fourth Proportional to 822,700.09, 1,135,226.49 and 455,152.42
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Solution
The fourth proportional to 822,700.09, 1,135,226.49 and 455,152.42 is: 628,055.21
Step by Step Solution
- Step 1: Write the proportion equation
822,700.09 : 1,135,226.49 = 455,152.42 : x - Step 2: Convert to fraction form
822,700.09/1,135,226.49 = 455,152.42/x - Step 3: Cross multiply
822,700.09x = 1,135,226.49 × 455,152.42 - Step 4: Simplify right side
822,700.09x = 516,701,080,058.40 - Step 5: Solve for x
x = 516,701,080,058.40/822,700.09 - Step 6: Final answer
x = 628,055.21
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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.