Finding the Fourth Proportional to 719,402.08, 992,829.84 and 397,174.24
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Solution
The fourth proportional to 719,402.08, 992,829.84 and 397,174.24 is: 548,130.80
Step by Step Solution
- Step 1: Write the proportion equation
719,402.08 : 992,829.84 = 397,174.24 : x - Step 2: Convert to fraction form
719,402.08/992,829.84 = 397,174.24/x - Step 3: Cross multiply
719,402.08x = 992,829.84 × 397,174.24 - Step 4: Simplify right side
719,402.08x = 394,326,437,151.32 - Step 5: Solve for x
x = 394,326,437,151.32/719,402.08 - Step 6: Final answer
x = 548,130.80
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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.