Finding the Fourth Proportional to 478,344.60, 717,257.70 and 197,890.20
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Solution
The fourth proportional to 478,344.60, 717,257.70 and 197,890.20 is: 296,728.07
Step by Step Solution
- Step 1: Write the proportion equation
478,344.60 : 717,257.70 = 197,890.20 : x - Step 2: Convert to fraction form
478,344.60/717,257.70 = 197,890.20/x - Step 3: Cross multiply
478,344.60x = 717,257.70 × 197,890.20 - Step 4: Simplify right side
478,344.60x = 141,938,269,704.54 - Step 5: Solve for x
x = 141,938,269,704.54/478,344.60 - Step 6: Final answer
x = 296,728.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.