Finding the Fourth Proportional to 1,972,318.56, 2,721,812.40 and 1,156,339.68
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Solution
The fourth proportional to 1,972,318.56, 2,721,812.40 and 1,156,339.68 is: 1,595,756.26
Step by Step Solution
- Step 1: Write the proportion equation
1,972,318.56 : 2,721,812.40 = 1,156,339.68 : x - Step 2: Convert to fraction form
1,972,318.56/2,721,812.40 = 1,156,339.68/x - Step 3: Cross multiply
1,972,318.56x = 2,721,812.40 × 1,156,339.68 - Step 4: Simplify right side
1,972,318.56x = 3,147,339,679,636.03 - Step 5: Solve for x
x = 3,147,339,679,636.03/1,972,318.56 - Step 6: Final answer
x = 1,595,756.26
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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.