Finding the Fourth Proportional to 892,437.12, 1,231,130.88 and 590,883.84
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Solution
The fourth proportional to 892,437.12, 1,231,130.88 and 590,883.84 is: 815,133.44
Step by Step Solution
- Step 1: Write the proportion equation
892,437.12 : 1,231,130.88 = 590,883.84 : x - Step 2: Convert to fraction form
892,437.12/1,231,130.88 = 590,883.84/x - Step 3: Cross multiply
892,437.12x = 1,231,130.88 × 590,883.84 - Step 4: Simplify right side
892,437.12x = 727,455,341,916.98 - Step 5: Solve for x
x = 727,455,341,916.98/892,437.12 - Step 6: Final answer
x = 815,133.44
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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.