Finding the Fourth Proportional to 1,438,518.76, 1,985,146.08 and 793,938.94
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Solution
The fourth proportional to 1,438,518.76, 1,985,146.08 and 793,938.94 is: 1,095,630.32
Step by Step Solution
- Step 1: Write the proportion equation
1,438,518.76 : 1,985,146.08 = 793,938.94 : x - Step 2: Convert to fraction form
1,438,518.76/1,985,146.08 = 793,938.94/x - Step 3: Cross multiply
1,438,518.76x = 1,985,146.08 × 793,938.94 - Step 4: Simplify right side
1,438,518.76x = 1,576,084,774,500.36 - Step 5: Solve for x
x = 1,576,084,774,500.36/1,438,518.76 - Step 6: Final answer
x = 1,095,630.32
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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.