Finding the Fourth Proportional to 611,122.23, 843,332.45 and 339,183.09
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Solution
The fourth proportional to 611,122.23, 843,332.45 and 339,183.09 is: 468,063.65
Step by Step Solution
- Step 1: Write the proportion equation
611,122.23 : 843,332.45 = 339,183.09 : x - Step 2: Convert to fraction form
611,122.23/843,332.45 = 339,183.09/x - Step 3: Cross multiply
611,122.23x = 843,332.45 × 339,183.09 - Step 4: Simplify right side
611,122.23x = 286,044,104,592.36 - Step 5: Solve for x
x = 286,044,104,592.36/611,122.23 - Step 6: Final answer
x = 468,063.65
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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.