Finding the Fourth Proportional to 742,325.44, 1,024,141.70 and 420,032.12
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Solution
The fourth proportional to 742,325.44, 1,024,141.70 and 420,032.12 is: 579,493.02
Step by Step Solution
- Step 1: Write the proportion equation
742,325.44 : 1,024,141.70 = 420,032.12 : x - Step 2: Convert to fraction form
742,325.44/1,024,141.70 = 420,032.12/x - Step 3: Cross multiply
742,325.44x = 1,024,141.70 × 420,032.12 - Step 4: Simplify right side
742,325.44x = 430,172,409,431.40 - Step 5: Solve for x
x = 430,172,409,431.40/742,325.44 - Step 6: Final answer
x = 579,493.02
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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.