Finding the Fourth Proportional to 748,051.20, 1,120,497.30 and 495,452.70
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Solution
The fourth proportional to 748,051.20, 1,120,497.30 and 495,452.70 is: 742,132.91
Step by Step Solution
- Step 1: Write the proportion equation
748,051.20 : 1,120,497.30 = 495,452.70 : x - Step 2: Convert to fraction form
748,051.20/1,120,497.30 = 495,452.70/x - Step 3: Cross multiply
748,051.20x = 1,120,497.30 × 495,452.70 - Step 4: Simplify right side
748,051.20x = 555,153,412,627.71 - Step 5: Solve for x
x = 555,153,412,627.71/748,051.20 - Step 6: Final answer
x = 742,132.91
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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.