Finding the Fourth Proportional to 438,438.30, 657,657.45 and 296,720.70
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Solution
The fourth proportional to 438,438.30, 657,657.45 and 296,720.70 is: 445,081.05
Step by Step Solution
- Step 1: Write the proportion equation
438,438.30 : 657,657.45 = 296,720.70 : x - Step 2: Convert to fraction form
438,438.30/657,657.45 = 296,720.70/x - Step 3: Cross multiply
438,438.30x = 657,657.45 × 296,720.70 - Step 4: Simplify right side
438,438.30x = 195,140,578,924.22 - Step 5: Solve for x
x = 195,140,578,924.22/438,438.30 - Step 6: Final answer
x = 445,081.05
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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.