Finding the Fourth Proportional to 719,129.94, 992,455.41 and 413,313.08
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Solution
The fourth proportional to 719,129.94, 992,455.41 and 413,313.08 is: 570,404.28
Step by Step Solution
- Step 1: Write the proportion equation
719,129.94 : 992,455.41 = 413,313.08 : x - Step 2: Convert to fraction form
719,129.94/992,455.41 = 413,313.08/x - Step 3: Cross multiply
719,129.94x = 992,455.41 × 413,313.08 - Step 4: Simplify right side
719,129.94x = 410,194,797,307.49 - Step 5: Solve for x
x = 410,194,797,307.49/719,129.94 - Step 6: Final answer
x = 570,404.28
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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.