Finding the Fourth Proportional to 870,671.41, 1,201,460.62 and 488,624.38
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Solution
The fourth proportional to 870,671.41, 1,201,460.62 and 488,624.38 is: 674,264.65
Step by Step Solution
- Step 1: Write the proportion equation
870,671.41 : 1,201,460.62 = 488,624.38 : x - Step 2: Convert to fraction form
870,671.41/1,201,460.62 = 488,624.38/x - Step 3: Cross multiply
870,671.41x = 1,201,460.62 × 488,624.38 - Step 4: Simplify right side
870,671.41x = 587,062,950,541.92 - Step 5: Solve for x
x = 587,062,950,541.92/870,671.41 - Step 6: Final answer
x = 674,264.65
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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.