Finding the Fourth Proportional to 748,392.14, 1,123,031.08 and 275,409.65
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Solution
The fourth proportional to 748,392.14, 1,123,031.08 and 275,409.65 is: 413,277.45
Step by Step Solution
- Step 1: Write the proportion equation
748,392.14 : 1,123,031.08 = 275,409.65 : x - Step 2: Convert to fraction form
748,392.14/1,123,031.08 = 275,409.65/x - Step 3: Cross multiply
748,392.14x = 1,123,031.08 × 275,409.65 - Step 4: Simplify right side
748,392.14x = 309,293,599,833.76 - Step 5: Solve for x
x = 309,293,599,833.76/748,392.14 - Step 6: Final answer
x = 413,277.45
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1.5x scale
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.