Finding the Fourth Proportional to 870,671.22, 1,201,460.36 and 488,624.19
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Solution
The fourth proportional to 870,671.22, 1,201,460.36 and 488,624.19 is: 674,264.39
Step by Step Solution
- Step 1: Write the proportion equation
870,671.22 : 1,201,460.36 = 488,624.19 : x - Step 2: Convert to fraction form
870,671.22/1,201,460.36 = 488,624.19/x - Step 3: Cross multiply
870,671.22x = 1,201,460.36 × 488,624.19 - Step 4: Simplify right side
870,671.22x = 587,062,595,222.11 - Step 5: Solve for x
x = 587,062,595,222.11/870,671.22 - Step 6: Final answer
x = 674,264.39
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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.