Finding the Fourth Proportional to 492,985.97, 680,320.69 and 266,631.47
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Solution
The fourth proportional to 492,985.97, 680,320.69 and 266,631.47 is: 367,951.45
Step by Step Solution
- Step 1: Write the proportion equation
492,985.97 : 680,320.69 = 266,631.47 : x - Step 2: Convert to fraction form
492,985.97/680,320.69 = 266,631.47/x - Step 3: Cross multiply
492,985.97x = 680,320.69 × 266,631.47 - Step 4: Simplify right side
492,985.97x = 181,394,904,129.14 - Step 5: Solve for x
x = 181,394,904,129.14/492,985.97 - Step 6: Final answer
x = 367,951.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.