Finding the Fourth Proportional to 515,594.80, 711,774.84 and 324,901.36
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Solution
The fourth proportional to 515,594.80, 711,774.84 and 324,901.36 is: 448,523.94
Step by Step Solution
- Step 1: Write the proportion equation
515,594.80 : 711,774.84 = 324,901.36 : x - Step 2: Convert to fraction form
515,594.80/711,774.84 = 324,901.36/x - Step 3: Cross multiply
515,594.80x = 711,774.84 × 324,901.36 - Step 4: Simplify right side
515,594.80x = 231,256,613,529.78 - Step 5: Solve for x
x = 231,256,613,529.78/515,594.80 - Step 6: Final answer
x = 448,523.94
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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.