Finding the Fourth Proportional to 1,042,072, 1,438,059.36 and 589,353.28
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Solution
The fourth proportional to 1,042,072, 1,438,059.36 and 589,353.28 is: 813,307.53
Step by Step Solution
- Step 1: Write the proportion equation
1,042,072 : 1,438,059.36 = 589,353.28 : x - Step 2: Convert to fraction form
1,042,072/1,438,059.36 = 589,353.28/x - Step 3: Cross multiply
1,042,072x = 1,438,059.36 × 589,353.28 - Step 4: Simplify right side
1,042,072x = 847,525,000,650.70 - Step 5: Solve for x
x = 847,525,000,650.70/1,042,072 - Step 6: Final answer
x = 813,307.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.