Finding the Fourth Proportional to 817,452,672.12, 1,129,560,313.14 and 582,094,725.12
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Solution
The fourth proportional to 817,452,672.12, 1,129,560,313.14 and 582,094,725.12 is: 804,341,489.62
Step by Step Solution
- Step 1: Write the proportion equation
817,452,672.12 : 1,129,560,313.14 = 582,094,725.12 : x - Step 2: Convert to fraction form
817,452,672.12/1,129,560,313.14 = 582,094,725.12/x - Step 3: Cross multiply
817,452,672.12x = 1,129,560,313.14 × 582,094,725.12 - Step 4: Simplify right side
817,452,672.12x = 657,511,099,983,689,472 - Step 5: Solve for x
x = 657,511,099,983,689,472/817,452,672.12 - Step 6: Final answer
x = 804,341,489.62
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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.