Finding the Fourth Proportional to 442,987.70, 664,481.55 and 442,987.70
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Solution
The fourth proportional to 442,987.70, 664,481.55 and 442,987.70 is: 664,481.55
Step by Step Solution
- Step 1: Write the proportion equation
442,987.70 : 664,481.55 = 442,987.70 : x - Step 2: Convert to fraction form
442,987.70/664,481.55 = 442,987.70/x - Step 3: Cross multiply
442,987.70x = 664,481.55 × 442,987.70 - Step 4: Simplify right side
442,987.70x = 294,357,153,526.94 - Step 5: Solve for x
x = 294,357,153,526.94/442,987.70 - Step 6: Final answer
x = 664,481.55
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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.