Finding the Fourth Proportional to 719,406.08, 992,835.36 and 397,178.24
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Solution
The fourth proportional to 719,406.08, 992,835.36 and 397,178.24 is: 548,136.32
Step by Step Solution
- Step 1: Write the proportion equation
719,406.08 : 992,835.36 = 397,178.24 : x - Step 2: Convert to fraction form
719,406.08/992,835.36 = 397,178.24/x - Step 3: Cross multiply
719,406.08x = 992,835.36 × 397,178.24 - Step 4: Simplify right side
719,406.08x = 394,332,600,894.57 - Step 5: Solve for x
x = 394,332,600,894.57/719,406.08 - Step 6: Final answer
x = 548,136.32
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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.