Finding the Fourth Proportional to 478,725.84, 717,478.20 and 254,193.84
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Solution
The fourth proportional to 478,725.84, 717,478.20 and 254,193.84 is: 380,966.56
Step by Step Solution
- Step 1: Write the proportion equation
478,725.84 : 717,478.20 = 254,193.84 : x - Step 2: Convert to fraction form
478,725.84/717,478.20 = 254,193.84/x - Step 3: Cross multiply
478,725.84x = 717,478.20 × 254,193.84 - Step 4: Simplify right side
478,725.84x = 182,378,538,774.29 - Step 5: Solve for x
x = 182,378,538,774.29/478,725.84 - Step 6: Final answer
x = 380,966.56
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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.