Finding the Fourth Proportional to 1,438,225.68, 1,984,737.96 and 793,651.60
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Solution
The fourth proportional to 1,438,225.68, 1,984,737.96 and 793,651.60 is: 1,095,231.77
Step by Step Solution
- Step 1: Write the proportion equation
1,438,225.68 : 1,984,737.96 = 793,651.60 : x - Step 2: Convert to fraction form
1,438,225.68/1,984,737.96 = 793,651.60/x - Step 3: Cross multiply
1,438,225.68x = 1,984,737.96 × 793,651.60 - Step 4: Simplify right side
1,438,225.68x = 1,575,190,457,534.74 - Step 5: Solve for x
x = 1,575,190,457,534.74/1,438,225.68 - Step 6: Final answer
x = 1,095,231.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.