Finding the Fourth Proportional to 947,774.84, 1,421,735.70 and 316,690.88
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Solution
The fourth proportional to 947,774.84, 1,421,735.70 and 316,690.88 is: 475,060.86
Step by Step Solution
- Step 1: Write the proportion equation
947,774.84 : 1,421,735.70 = 316,690.88 : x - Step 2: Convert to fraction form
947,774.84/1,421,735.70 = 316,690.88/x - Step 3: Cross multiply
947,774.84x = 1,421,735.70 × 316,690.88 - Step 4: Simplify right side
947,774.84x = 450,250,729,960.42 - Step 5: Solve for x
x = 450,250,729,960.42/947,774.84 - Step 6: Final answer
x = 475,060.86
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1.5x scale
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.