Finding the Fourth Proportional to 742,059.30, 1,113,703.35 and 343,313.70
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Solution
The fourth proportional to 742,059.30, 1,113,703.35 and 343,313.70 is: 515,254.80
Step by Step Solution
- Step 1: Write the proportion equation
742,059.30 : 1,113,703.35 = 343,313.70 : x - Step 2: Convert to fraction form
742,059.30/1,113,703.35 = 343,313.70/x - Step 3: Cross multiply
742,059.30x = 1,113,703.35 × 343,313.70 - Step 4: Simplify right side
742,059.30x = 382,349,617,790.90 - Step 5: Solve for x
x = 382,349,617,790.90/742,059.30 - Step 6: Final answer
x = 515,254.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.