Finding the Fourth Proportional to 478,388.87, 717,671.60 and 197,927.99
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Solution
The fourth proportional to 478,388.87, 717,671.60 and 197,927.99 is: 296,928.51
Step by Step Solution
- Step 1: Write the proportion equation
478,388.87 : 717,671.60 = 197,927.99 : x - Step 2: Convert to fraction form
478,388.87/717,671.60 = 197,927.99/x - Step 3: Cross multiply
478,388.87x = 717,671.60 × 197,927.99 - Step 4: Simplify right side
478,388.87x = 142,047,296,278.44 - Step 5: Solve for x
x = 142,047,296,278.44/478,388.87 - Step 6: Final answer
x = 296,928.51
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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.