Finding the Fourth Proportional to 807,671.80, 1,211,507.70 and 492,743.80
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Solution
The fourth proportional to 807,671.80, 1,211,507.70 and 492,743.80 is: 739,115.70
Step by Step Solution
- Step 1: Write the proportion equation
807,671.80 : 1,211,507.70 = 492,743.80 : x - Step 2: Convert to fraction form
807,671.80/1,211,507.70 = 492,743.80/x - Step 3: Cross multiply
807,671.80x = 1,211,507.70 × 492,743.80 - Step 4: Simplify right side
807,671.80x = 596,962,907,827.26 - Step 5: Solve for x
x = 596,962,907,827.26/807,671.80 - Step 6: Final answer
x = 739,115.70
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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.