Finding the Fourth Proportional to 430,664.40, 644,465.70 and 375,114.60
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Solution
The fourth proportional to 430,664.40, 644,465.70 and 375,114.60 is: 561,338.47
Step by Step Solution
- Step 1: Write the proportion equation
430,664.40 : 644,465.70 = 375,114.60 : x - Step 2: Convert to fraction form
430,664.40/644,465.70 = 375,114.60/x - Step 3: Cross multiply
430,664.40x = 644,465.70 × 375,114.60 - Step 4: Simplify right side
430,664.40x = 241,748,493,269.22 - Step 5: Solve for x
x = 241,748,493,269.22/430,664.40 - Step 6: Final answer
x = 561,338.47
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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.