Finding the Fourth Proportional to 743,698.14, 1,115,374.68 and 364,240.28
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Solution
The fourth proportional to 743,698.14, 1,115,374.68 and 364,240.28 is: 546,275.91
Step by Step Solution
- Step 1: Write the proportion equation
743,698.14 : 1,115,374.68 = 364,240.28 : x - Step 2: Convert to fraction form
743,698.14/1,115,374.68 = 364,240.28/x - Step 3: Cross multiply
743,698.14x = 1,115,374.68 × 364,240.28 - Step 4: Simplify right side
743,698.14x = 406,264,380,171.24 - Step 5: Solve for x
x = 406,264,380,171.24/743,698.14 - Step 6: Final answer
x = 546,275.91
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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.